640191168

素因数分解:

$2^6\times 3^3\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1$

素因数の和:125

約数の個数: 448

約数和(自身を含む): 2223820800

約数和(自身を除く): 1583629632

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 17, 18, 19, 24, 27, 31, 32, 34, 36, 37, 38, 48, 51, 54, 57, 62, 64, 68, 72, 74, 76, 93, 96, 102, 108, 111, 114, 124, 136, 144, 148, 152, 153, 171, 186, 192, 204, 216, 222, 228, 248, 272, 279, 288, 296, 304, 306, 323, 333, 342, 372, 408, 432, 444, 456, 459, 496, 513, 527, 544, 558, 576, 589, 592, 608, 612, 629, 646, 666, 684, 703, 744, 816, 837, 864, 888, 912, 918, 969, 992, 999, 1026, 1054, 1088, 1116, 1147, 1178, 1184, 1216, 1224, 1258, 1292, 1332, 1368, 1406, 1488, 1581, 1632, 1674, 1728, 1767, 1776, 1824, 1836, 1887, 1938, 1984, 1998, 2052, 2108, 2109, 2232, 2294, 2356, 2368, 2448, 2516, 2584, 2664, 2736, 2812, 2907, 2976, 3162, 3264, 3348, 3441, 3534, 3552, 3648, 3672, 3774, 3876, 3996, 4104, 4216, 4218, 4464, 4588, 4712, 4743, 4896, 5032, 5168, 5301, 5328, 5472, 5624, 5661, 5814, 5952, 6324, 6327, 6696, 6882, 7068, 7104, 7344, 7548, 7752, 7992, 8208, 8432, 8436, 8721, 8928, 9176, 9424, 9486, 9792, 10013, 10064, 10323, 10336, 10602, 10656, 10944, 11248, 11322, 11628, 11951, 12648, 12654, 13392, 13764, 14136, 14229, 14688, 15096, 15504, 15903, 15984, 16416, 16864, 16872, 16983, 17442, 17856, 18352, 18848, 18972, 18981, 19499, 20026, 20128, 20646, 20672, 21204, 21312, 21793, 22496, 22644, 23256, 23902, 25296, 25308, 26784, 27528, 28272, 28458, 29376, 30039, 30192, 30969, 31008, 31806, 31968, 32832, 33728, 33744, 33966, 34884, 35853, 36704, 37696, 37944, 37962, 38998, 40052, 40256, 41292, 42408, 43586, 44992, 45288, 46512, 47804, 50592, 50616, 53568, 55056, 56544, 56916, 58497, 60078, 60384, 61938, 62016, 63612, 63936, 65379, 67488, 67932, 69768, 71706, 73408, 75888, 75924, 77996, 80104, 82584, 84816, 87172, 90117, 90576, 93024, 95608, 101184, 101232, 107559, 110112, 113088, 113832, 116994, 120156, 120768, 123876, 127224, 130758, 134976, 135864, 139536, 143412, 151776, 151848, 155992, 160208, 165168, 169632, 174344, 175491, 180234, 181152, 186048, 191216, 196137, 202464, 215118, 220224, 227664, 233988, 240312, 247752, 254448, 261516, 270351, 271728, 279072, 286824, 303552, 303696, 311984, 320416, 322677, 330336, 339264, 348688, 350982, 360468, 362304, 370481, 382432, 392274, 404928, 430236, 455328, 467976, 480624, 495504, 508896, 523032, 526473, 540702, 543456, 558144, 573648, 588411, 607392, 623968, 640832, 645354, 660672, 697376, 701964, 720936, 740962, 764864, 784548, 860472, 910656, 935952, 961248, 991008, 1017792, 1046064, 1052946, 1081404, 1086912, 1111443, 1147296, 1176822, 1214784, 1247936, 1290708, 1394752, 1403928, 1441872, 1481924, 1569096, 1720944, 1871904, 1922496, 1982016, 2092128, 2105892, 2162808, 2222886, 2294592, 2353644, 2581416, 2807856, 2883744, 2963848, 3138192, 3334329, 3441888, 3743808, 4184256, 4211784, 4325616, 4445772, 4707288, 5162832, 5615712, 5767488, 5927696, 6276384, 6668658, 6883776, 8423568, 8651232, 8891544, 9414576, 10002987, 10325664, 11231424, 11855392, 12552768, 13337316, 16847136, 17302464, 17783088, 18829152, 20005974, 20651328, 23710784, 26674632, 33694272, 35566176, 37658304, 40011948, 53349264, 71132352, 80023896, 106698528, 160047792, 213397056, 320095584, 640191168]

約数ペア:

[(1, 640191168), (2, 320095584), (3, 213397056), (4, 160047792), (6, 106698528), (8, 80023896), (9, 71132352), (12, 53349264), (16, 40011948), (17, 37658304), (18, 35566176), (19, 33694272), (24, 26674632), (27, 23710784), (31, 20651328), (32, 20005974), (34, 18829152), (36, 17783088), (37, 17302464), (38, 16847136), (48, 13337316), (51, 12552768), (54, 11855392), (57, 11231424), (62, 10325664), (64, 10002987), (68, 9414576), (72, 8891544), (74, 8651232), (76, 8423568), (93, 6883776), (96, 6668658), (102, 6276384), (108, 5927696), (111, 5767488), (114, 5615712), (124, 5162832), (136, 4707288), (144, 4445772), (148, 4325616), (152, 4211784), (153, 4184256), (171, 3743808), (186, 3441888), (192, 3334329), (204, 3138192), (216, 2963848), (222, 2883744), (228, 2807856), (248, 2581416), (272, 2353644), (279, 2294592), (288, 2222886), (296, 2162808), (304, 2105892), (306, 2092128), (323, 1982016), (333, 1922496), (342, 1871904), (372, 1720944), (408, 1569096), (432, 1481924), (444, 1441872), (456, 1403928), (459, 1394752), (496, 1290708), (513, 1247936), (527, 1214784), (544, 1176822), (558, 1147296), (576, 1111443), (589, 1086912), (592, 1081404), (608, 1052946), (612, 1046064), (629, 1017792), (646, 991008), (666, 961248), (684, 935952), (703, 910656), (744, 860472), (816, 784548), (837, 764864), (864, 740962), (888, 720936), (912, 701964), (918, 697376), (969, 660672), (992, 645354), (999, 640832), (1026, 623968), (1054, 607392), (1088, 588411), (1116, 573648), (1147, 558144), (1178, 543456), (1184, 540702), (1216, 526473), (1224, 523032), (1258, 508896), (1292, 495504), (1332, 480624), (1368, 467976), (1406, 455328), (1488, 430236), (1581, 404928), (1632, 392274), (1674, 382432), (1728, 370481), (1767, 362304), (1776, 360468), (1824, 350982), (1836, 348688), (1887, 339264), (1938, 330336), (1984, 322677), (1998, 320416), (2052, 311984), (2108, 303696), (2109, 303552), (2232, 286824), (2294, 279072), (2356, 271728), (2368, 270351), (2448, 261516), (2516, 254448), (2584, 247752), (2664, 240312), (2736, 233988), (2812, 227664), (2907, 220224), (2976, 215118), (3162, 202464), (3264, 196137), (3348, 191216), (3441, 186048), (3534, 181152), (3552, 180234), (3648, 175491), (3672, 174344), (3774, 169632), (3876, 165168), (3996, 160208), (4104, 155992), (4216, 151848), (4218, 151776), (4464, 143412), (4588, 139536), (4712, 135864), (4743, 134976), (4896, 130758), (5032, 127224), (5168, 123876), (5301, 120768), (5328, 120156), (5472, 116994), (5624, 113832), (5661, 113088), (5814, 110112), (5952, 107559), (6324, 101232), (6327, 101184), (6696, 95608), (6882, 93024), (7068, 90576), (7104, 90117), (7344, 87172), (7548, 84816), (7752, 82584), (7992, 80104), (8208, 77996), (8432, 75924), (8436, 75888), (8721, 73408), (8928, 71706), (9176, 69768), (9424, 67932), (9486, 67488), (9792, 65379), (10013, 63936), (10064, 63612), (10323, 62016), (10336, 61938), (10602, 60384), (10656, 60078), (10944, 58497), (11248, 56916), (11322, 56544), (11628, 55056), (11951, 53568), (12648, 50616), (12654, 50592), (13392, 47804), (13764, 46512), (14136, 45288), (14229, 44992), (14688, 43586), (15096, 42408), (15504, 41292), (15903, 40256), (15984, 40052), (16416, 38998), (16864, 37962), (16872, 37944), (16983, 37696), (17442, 36704), (17856, 35853), (18352, 34884), (18848, 33966), (18972, 33744), (18981, 33728), (19499, 32832), (20026, 31968), (20128, 31806), (20646, 31008), (20672, 30969), (21204, 30192), (21312, 30039), (21793, 29376), (22496, 28458), (22644, 28272), (23256, 27528), (23902, 26784), (25296, 25308)]