280426510

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1$

素因数の和:391

約数の個数: 128

約数和(自身を含む): 669312000

約数和(自身を除く): 388885490

約数列:

[1, 2, 5, 7, 10, 13, 14, 19, 26, 35, 38, 49, 65, 70, 91, 95, 98, 130, 133, 182, 190, 245, 247, 266, 331, 343, 455, 490, 494, 637, 662, 665, 686, 910, 931, 1235, 1274, 1330, 1655, 1715, 1729, 1862, 2317, 2470, 3185, 3310, 3430, 3458, 4303, 4459, 4634, 4655, 6289, 6370, 6517, 8606, 8645, 8918, 9310, 11585, 12103, 12578, 13034, 16219, 17290, 21515, 22295, 23170, 24206, 30121, 31445, 32438, 32585, 43030, 44023, 44590, 60242, 60515, 62890, 65170, 81095, 81757, 84721, 88046, 113533, 121030, 150605, 162190, 163514, 169442, 210847, 220115, 227066, 301210, 308161, 408785, 421694, 423605, 440230, 567665, 572299, 616322, 817570, 847210, 1054235, 1135330, 1144598, 1475929, 1540805, 2108470, 2157127, 2861495, 2951858, 3081610, 4006093, 4314254, 5722990, 7379645, 8012186, 10785635, 14759290, 20030465, 21571270, 28042651, 40060930, 56085302, 140213255, 280426510]

約数ペア:

[(1, 280426510), (2, 140213255), (5, 56085302), (7, 40060930), (10, 28042651), (13, 21571270), (14, 20030465), (19, 14759290), (26, 10785635), (35, 8012186), (38, 7379645), (49, 5722990), (65, 4314254), (70, 4006093), (91, 3081610), (95, 2951858), (98, 2861495), (130, 2157127), (133, 2108470), (182, 1540805), (190, 1475929), (245, 1144598), (247, 1135330), (266, 1054235), (331, 847210), (343, 817570), (455, 616322), (490, 572299), (494, 567665), (637, 440230), (662, 423605), (665, 421694), (686, 408785), (910, 308161), (931, 301210), (1235, 227066), (1274, 220115), (1330, 210847), (1655, 169442), (1715, 163514), (1729, 162190), (1862, 150605), (2317, 121030), (2470, 113533), (3185, 88046), (3310, 84721), (3430, 81757), (3458, 81095), (4303, 65170), (4459, 62890), (4634, 60515), (4655, 60242), (6289, 44590), (6370, 44023), (6517, 43030), (8606, 32585), (8645, 32438), (8918, 31445), (9310, 30121), (11585, 24206), (12103, 23170), (12578, 22295), (13034, 21515), (16219, 17290)]