4000008256

素因数分解:

$2^6\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{2473}}^1$

素因数の和:2811

約数の個数: 56

約数和(自身を含む): 8043468800

約数和(自身を除く): 4043460544

約数列:

[1, 2, 4, 8, 16, 32, 64, 127, 199, 254, 398, 508, 796, 1016, 1592, 2032, 2473, 3184, 4064, 4946, 6368, 8128, 9892, 12736, 19784, 25273, 39568, 50546, 79136, 101092, 158272, 202184, 314071, 404368, 492127, 628142, 808736, 984254, 1256284, 1617472, 1968508, 2512568, 3937016, 5025136, 7874032, 10050272, 15748064, 20100544, 31496128, 62500129, 125000258, 250000516, 500001032, 1000002064, 2000004128, 4000008256]

約数ペア:

[(1, 4000008256), (2, 2000004128), (4, 1000002064), (8, 500001032), (16, 250000516), (32, 125000258), (64, 62500129), (127, 31496128), (199, 20100544), (254, 15748064), (398, 10050272), (508, 7874032), (796, 5025136), (1016, 3937016), (1592, 2512568), (2032, 1968508), (2473, 1617472), (3184, 1256284), (4064, 984254), (4946, 808736), (6368, 628142), (8128, 492127), (9892, 404368), (12736, 314071), (19784, 202184), (25273, 158272), (39568, 101092), (50546, 79136)]