278875008

素因数分解:

$2^7\times 3^3\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1$

素因数の和:210

約数の個数: 256

約数和(自身を含む): 900864000

約数和(自身を除く): 621988992

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 31, 32, 36, 38, 48, 54, 57, 62, 64, 72, 76, 93, 96, 108, 114, 124, 128, 137, 144, 152, 171, 186, 192, 216, 228, 248, 274, 279, 288, 304, 342, 372, 384, 411, 432, 456, 496, 513, 548, 558, 576, 589, 608, 684, 744, 822, 837, 864, 912, 992, 1026, 1096, 1116, 1152, 1178, 1216, 1233, 1368, 1488, 1644, 1674, 1728, 1767, 1824, 1984, 2052, 2192, 2232, 2356, 2432, 2466, 2603, 2736, 2976, 3288, 3348, 3456, 3534, 3648, 3699, 3968, 4104, 4247, 4384, 4464, 4712, 4932, 5206, 5301, 5472, 5952, 6576, 6696, 7068, 7296, 7398, 7809, 8208, 8494, 8768, 8928, 9424, 9864, 10412, 10602, 10944, 11904, 12741, 13152, 13392, 14136, 14796, 15618, 15903, 16416, 16988, 17536, 17856, 18848, 19728, 20824, 21204, 21888, 23427, 25482, 26304, 26784, 28272, 29592, 31236, 31806, 32832, 33976, 35712, 37696, 38223, 39456, 41648, 42408, 46854, 50964, 52608, 53568, 56544, 59184, 62472, 63612, 65664, 67952, 70281, 75392, 76446, 78912, 80693, 83296, 84816, 93708, 101928, 107136, 113088, 114669, 118368, 124944, 127224, 135904, 140562, 152892, 157824, 161386, 166592, 169632, 187416, 203856, 226176, 229338, 236736, 242079, 249888, 254448, 271808, 281124, 305784, 322772, 333184, 339264, 374832, 407712, 458676, 473472, 484158, 499776, 508896, 543616, 562248, 611568, 645544, 678528, 726237, 749664, 815424, 917352, 968316, 999552, 1017792, 1124496, 1223136, 1291088, 1452474, 1499328, 1630848, 1834704, 1936632, 2035584, 2178711, 2248992, 2446272, 2582176, 2904948, 2998656, 3669408, 3873264, 4357422, 4497984, 4892544, 5164352, 5809896, 7338816, 7746528, 8714844, 8995968, 10328704, 11619792, 14677632, 15493056, 17429688, 23239584, 30986112, 34859376, 46479168, 69718752, 92958336, 139437504, 278875008]

約数ペア:

[(1, 278875008), (2, 139437504), (3, 92958336), (4, 69718752), (6, 46479168), (8, 34859376), (9, 30986112), (12, 23239584), (16, 17429688), (18, 15493056), (19, 14677632), (24, 11619792), (27, 10328704), (31, 8995968), (32, 8714844), (36, 7746528), (38, 7338816), (48, 5809896), (54, 5164352), (57, 4892544), (62, 4497984), (64, 4357422), (72, 3873264), (76, 3669408), (93, 2998656), (96, 2904948), (108, 2582176), (114, 2446272), (124, 2248992), (128, 2178711), (137, 2035584), (144, 1936632), (152, 1834704), (171, 1630848), (186, 1499328), (192, 1452474), (216, 1291088), (228, 1223136), (248, 1124496), (274, 1017792), (279, 999552), (288, 968316), (304, 917352), (342, 815424), (372, 749664), (384, 726237), (411, 678528), (432, 645544), (456, 611568), (496, 562248), (513, 543616), (548, 508896), (558, 499776), (576, 484158), (589, 473472), (608, 458676), (684, 407712), (744, 374832), (822, 339264), (837, 333184), (864, 322772), (912, 305784), (992, 281124), (1026, 271808), (1096, 254448), (1116, 249888), (1152, 242079), (1178, 236736), (1216, 229338), (1233, 226176), (1368, 203856), (1488, 187416), (1644, 169632), (1674, 166592), (1728, 161386), (1767, 157824), (1824, 152892), (1984, 140562), (2052, 135904), (2192, 127224), (2232, 124944), (2356, 118368), (2432, 114669), (2466, 113088), (2603, 107136), (2736, 101928), (2976, 93708), (3288, 84816), (3348, 83296), (3456, 80693), (3534, 78912), (3648, 76446), (3699, 75392), (3968, 70281), (4104, 67952), (4247, 65664), (4384, 63612), (4464, 62472), (4712, 59184), (4932, 56544), (5206, 53568), (5301, 52608), (5472, 50964), (5952, 46854), (6576, 42408), (6696, 41648), (7068, 39456), (7296, 38223), (7398, 37696), (7809, 35712), (8208, 33976), (8494, 32832), (8768, 31806), (8928, 31236), (9424, 29592), (9864, 28272), (10412, 26784), (10602, 26304), (10944, 25482), (11904, 23427), (12741, 21888), (13152, 21204), (13392, 20824), (14136, 19728), (14796, 18848), (15618, 17856), (15903, 17536), (16416, 16988)]