1989613728

素因数分解:

$2^5\times 3^2\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{317}}^1$

素因数の和:420

約数の個数: 288

約数和(自身を含む): 6333949440

約数和(自身を除く): 4344335712

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 31, 32, 36, 37, 38, 48, 57, 62, 72, 74, 76, 93, 96, 111, 114, 124, 144, 148, 152, 171, 186, 222, 228, 248, 279, 288, 296, 304, 317, 333, 342, 372, 444, 456, 496, 558, 589, 592, 608, 634, 666, 684, 703, 744, 888, 912, 951, 992, 1116, 1147, 1178, 1184, 1268, 1332, 1368, 1406, 1488, 1767, 1776, 1824, 1902, 2109, 2232, 2294, 2356, 2536, 2664, 2736, 2812, 2853, 2976, 3441, 3534, 3552, 3804, 4218, 4464, 4588, 4712, 5072, 5301, 5328, 5472, 5624, 5706, 6023, 6327, 6882, 7068, 7608, 8436, 8928, 9176, 9424, 9827, 10144, 10323, 10602, 10656, 11248, 11412, 11729, 12046, 12654, 13764, 14136, 15216, 16872, 18069, 18352, 18848, 19654, 20646, 21204, 21793, 22496, 22824, 23458, 24092, 25308, 27528, 28272, 29481, 30432, 33744, 35187, 36138, 36704, 39308, 41292, 42408, 43586, 45648, 46916, 48184, 50616, 54207, 55056, 56544, 58962, 65379, 67488, 70374, 72276, 78616, 82584, 84816, 87172, 88443, 91296, 93832, 96368, 101232, 105561, 108414, 110112, 117924, 130758, 140748, 144552, 157232, 165168, 169632, 174344, 176886, 186713, 187664, 192736, 196137, 202464, 211122, 216828, 222851, 235848, 261516, 281496, 289104, 314464, 330336, 348688, 353772, 363599, 373426, 375328, 392274, 422244, 433656, 445702, 471696, 523032, 560139, 562992, 578208, 668553, 697376, 707544, 727198, 746852, 784548, 844488, 867312, 891404, 943392, 1046064, 1090797, 1120278, 1125984, 1337106, 1415088, 1454396, 1493704, 1569096, 1680417, 1688976, 1734624, 1782808, 2005659, 2092128, 2181594, 2240556, 2674212, 2830176, 2908792, 2987408, 3138192, 3272391, 3360834, 3377952, 3565616, 4011318, 4363188, 4481112, 5348424, 5817584, 5974816, 6276384, 6544782, 6721668, 6908381, 7131232, 8022636, 8726376, 8962224, 10696848, 11635168, 13089564, 13443336, 13816762, 16045272, 17452752, 17924448, 20725143, 21393696, 26179128, 26886672, 27633524, 32090544, 34905504, 41450286, 52358256, 53773344, 55267048, 62175429, 64181088, 82900572, 104716512, 110534096, 124350858, 165801144, 221068192, 248701716, 331602288, 497403432, 663204576, 994806864, 1989613728]

約数ペア:

[(1, 1989613728), (2, 994806864), (3, 663204576), (4, 497403432), (6, 331602288), (8, 248701716), (9, 221068192), (12, 165801144), (16, 124350858), (18, 110534096), (19, 104716512), (24, 82900572), (31, 64181088), (32, 62175429), (36, 55267048), (37, 53773344), (38, 52358256), (48, 41450286), (57, 34905504), (62, 32090544), (72, 27633524), (74, 26886672), (76, 26179128), (93, 21393696), (96, 20725143), (111, 17924448), (114, 17452752), (124, 16045272), (144, 13816762), (148, 13443336), (152, 13089564), (171, 11635168), (186, 10696848), (222, 8962224), (228, 8726376), (248, 8022636), (279, 7131232), (288, 6908381), (296, 6721668), (304, 6544782), (317, 6276384), (333, 5974816), (342, 5817584), (372, 5348424), (444, 4481112), (456, 4363188), (496, 4011318), (558, 3565616), (589, 3377952), (592, 3360834), (608, 3272391), (634, 3138192), (666, 2987408), (684, 2908792), (703, 2830176), (744, 2674212), (888, 2240556), (912, 2181594), (951, 2092128), (992, 2005659), (1116, 1782808), (1147, 1734624), (1178, 1688976), (1184, 1680417), (1268, 1569096), (1332, 1493704), (1368, 1454396), (1406, 1415088), (1488, 1337106), (1767, 1125984), (1776, 1120278), (1824, 1090797), (1902, 1046064), (2109, 943392), (2232, 891404), (2294, 867312), (2356, 844488), (2536, 784548), (2664, 746852), (2736, 727198), (2812, 707544), (2853, 697376), (2976, 668553), (3441, 578208), (3534, 562992), (3552, 560139), (3804, 523032), (4218, 471696), (4464, 445702), (4588, 433656), (4712, 422244), (5072, 392274), (5301, 375328), (5328, 373426), (5472, 363599), (5624, 353772), (5706, 348688), (6023, 330336), (6327, 314464), (6882, 289104), (7068, 281496), (7608, 261516), (8436, 235848), (8928, 222851), (9176, 216828), (9424, 211122), (9827, 202464), (10144, 196137), (10323, 192736), (10602, 187664), (10656, 186713), (11248, 176886), (11412, 174344), (11729, 169632), (12046, 165168), (12654, 157232), (13764, 144552), (14136, 140748), (15216, 130758), (16872, 117924), (18069, 110112), (18352, 108414), (18848, 105561), (19654, 101232), (20646, 96368), (21204, 93832), (21793, 91296), (22496, 88443), (22824, 87172), (23458, 84816), (24092, 82584), (25308, 78616), (27528, 72276), (28272, 70374), (29481, 67488), (30432, 65379), (33744, 58962), (35187, 56544), (36138, 55056), (36704, 54207), (39308, 50616), (41292, 48184), (42408, 46916), (43586, 45648)]