396943960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{487}}^1$

素因数の和:617

約数の個数: 128

約数和(自身を含む): 1062512640

約数和(自身を除く): 665568680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 71, 82, 140, 142, 164, 205, 280, 284, 287, 328, 355, 410, 487, 497, 568, 574, 710, 820, 974, 994, 1148, 1420, 1435, 1640, 1948, 1988, 2296, 2435, 2485, 2840, 2870, 2911, 3409, 3896, 3976, 4870, 4970, 5740, 5822, 6818, 9740, 9940, 11480, 11644, 13636, 14555, 17045, 19480, 19880, 19967, 20377, 23288, 27272, 29110, 34090, 34577, 39934, 40754, 58220, 68180, 69154, 79868, 81508, 99835, 101885, 116440, 136360, 138308, 139769, 159736, 163016, 172885, 199670, 203770, 242039, 276616, 279538, 345770, 399340, 407540, 484078, 559076, 691540, 698845, 798680, 815080, 968156, 1118152, 1210195, 1383080, 1397690, 1417657, 1936312, 2420390, 2795380, 2835314, 4840780, 5590760, 5670628, 7088285, 9681560, 9923599, 11341256, 14176570, 19847198, 28353140, 39694396, 49617995, 56706280, 79388792, 99235990, 198471980, 396943960]

約数ペア:

[(1, 396943960), (2, 198471980), (4, 99235990), (5, 79388792), (7, 56706280), (8, 49617995), (10, 39694396), (14, 28353140), (20, 19847198), (28, 14176570), (35, 11341256), (40, 9923599), (41, 9681560), (56, 7088285), (70, 5670628), (71, 5590760), (82, 4840780), (140, 2835314), (142, 2795380), (164, 2420390), (205, 1936312), (280, 1417657), (284, 1397690), (287, 1383080), (328, 1210195), (355, 1118152), (410, 968156), (487, 815080), (497, 798680), (568, 698845), (574, 691540), (710, 559076), (820, 484078), (974, 407540), (994, 399340), (1148, 345770), (1420, 279538), (1435, 276616), (1640, 242039), (1948, 203770), (1988, 199670), (2296, 172885), (2435, 163016), (2485, 159736), (2840, 139769), (2870, 138308), (2911, 136360), (3409, 116440), (3896, 101885), (3976, 99835), (4870, 81508), (4970, 79868), (5740, 69154), (5822, 68180), (6818, 58220), (9740, 40754), (9940, 39934), (11480, 34577), (11644, 34090), (13636, 29110), (14555, 27272), (17045, 23288), (19480, 20377), (19880, 19967)]