405359864

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{101}}^1\times {\mathrm{149}}^1$

素因数の和:313

約数の個数: 128

約数和(自身を含む): 976752000

約数和(自身を除く): 571392136

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 37, 52, 56, 74, 91, 101, 104, 148, 149, 182, 202, 259, 296, 298, 364, 404, 481, 518, 596, 707, 728, 808, 962, 1036, 1043, 1192, 1313, 1414, 1924, 1937, 2072, 2086, 2626, 2828, 3367, 3737, 3848, 3874, 4172, 5252, 5513, 5656, 6734, 7474, 7748, 8344, 9191, 10504, 11026, 13468, 13559, 14948, 15049, 15496, 18382, 22052, 26159, 26936, 27118, 29896, 30098, 36764, 38591, 44104, 48581, 52318, 54236, 60196, 71669, 73528, 77182, 97162, 104636, 105343, 108472, 120392, 143338, 154364, 194324, 195637, 209272, 210686, 286676, 308728, 340067, 388648, 391274, 421372, 501683, 556813, 573352, 680134, 782548, 842744, 1003366, 1113626, 1360268, 1369459, 1565096, 2006732, 2227252, 2720536, 2738918, 3897691, 4013464, 4454504, 5477836, 7238569, 7795382, 10955672, 14477138, 15590764, 28954276, 31181528, 50669983, 57908552, 101339966, 202679932, 405359864]

約数ペア:

[(1, 405359864), (2, 202679932), (4, 101339966), (7, 57908552), (8, 50669983), (13, 31181528), (14, 28954276), (26, 15590764), (28, 14477138), (37, 10955672), (52, 7795382), (56, 7238569), (74, 5477836), (91, 4454504), (101, 4013464), (104, 3897691), (148, 2738918), (149, 2720536), (182, 2227252), (202, 2006732), (259, 1565096), (296, 1369459), (298, 1360268), (364, 1113626), (404, 1003366), (481, 842744), (518, 782548), (596, 680134), (707, 573352), (728, 556813), (808, 501683), (962, 421372), (1036, 391274), (1043, 388648), (1192, 340067), (1313, 308728), (1414, 286676), (1924, 210686), (1937, 209272), (2072, 195637), (2086, 194324), (2626, 154364), (2828, 143338), (3367, 120392), (3737, 108472), (3848, 105343), (3874, 104636), (4172, 97162), (5252, 77182), (5513, 73528), (5656, 71669), (6734, 60196), (7474, 54236), (7748, 52318), (8344, 48581), (9191, 44104), (10504, 38591), (11026, 36764), (13468, 30098), (13559, 29896), (14948, 27118), (15049, 26936), (15496, 26159), (18382, 22052)]