317695880

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{307}}^1\times {\mathrm{631}}^1$

素因数の和:990

約数の個数: 64

約数和(自身を含む): 735799680

約数和(自身を除く): 418103800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 307, 328, 410, 614, 631, 820, 1228, 1262, 1535, 1640, 2456, 2524, 3070, 3155, 5048, 6140, 6310, 12280, 12587, 12620, 25174, 25240, 25871, 50348, 51742, 62935, 100696, 103484, 125870, 129355, 193717, 206968, 251740, 258710, 387434, 503480, 517420, 774868, 968585, 1034840, 1549736, 1937170, 3874340, 7748680, 7942397, 15884794, 31769588, 39711985, 63539176, 79423970, 158847940, 317695880]

約数ペア:

[(1, 317695880), (2, 158847940), (4, 79423970), (5, 63539176), (8, 39711985), (10, 31769588), (20, 15884794), (40, 7942397), (41, 7748680), (82, 3874340), (164, 1937170), (205, 1549736), (307, 1034840), (328, 968585), (410, 774868), (614, 517420), (631, 503480), (820, 387434), (1228, 258710), (1262, 251740), (1535, 206968), (1640, 193717), (2456, 129355), (2524, 125870), (3070, 103484), (3155, 100696), (5048, 62935), (6140, 51742), (6310, 50348), (12280, 25871), (12587, 25240), (12620, 25174)]