79771640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153407}}^1$

素因数の和:153431

約数の個数: 32

約数和(自身を含む): 193294080

約数和(自身を除く): 113522440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 153407, 306814, 613628, 767035, 1227256, 1534070, 1994291, 3068140, 3988582, 6136280, 7977164, 9971455, 15954328, 19942910, 39885820, 79771640]

約数ペア:

[(1, 79771640), (2, 39885820), (4, 19942910), (5, 15954328), (8, 9971455), (10, 7977164), (13, 6136280), (20, 3988582), (26, 3068140), (40, 1994291), (52, 1534070), (65, 1227256), (104, 767035), (130, 613628), (260, 306814), (520, 153407)]