80898680

素因数分解:

$2^3\times 5^1\times {\mathrm{557}}^1\times {\mathrm{3631}}^1$

素因数の和:4199

約数の個数: 32

約数和(自身を含む): 182399040

約数和(自身を除く): 101500360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 557, 1114, 2228, 2785, 3631, 4456, 5570, 7262, 11140, 14524, 18155, 22280, 29048, 36310, 72620, 145240, 2022467, 4044934, 8089868, 10112335, 16179736, 20224670, 40449340, 80898680]

約数ペア:

[(1, 80898680), (2, 40449340), (4, 20224670), (5, 16179736), (8, 10112335), (10, 8089868), (20, 4044934), (40, 2022467), (557, 145240), (1114, 72620), (2228, 36310), (2785, 29048), (3631, 22280), (4456, 18155), (5570, 14524), (7262, 11140)]