90868280

素因数分解:

$2^3\times 5^1\times {\mathrm{821}}^1\times {\mathrm{2767}}^1$

素因数の和:3599

約数の個数: 32

約数和(自身を含む): 204776640

約数和(自身を除く): 113908360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 821, 1642, 2767, 3284, 4105, 5534, 6568, 8210, 11068, 13835, 16420, 22136, 27670, 32840, 55340, 110680, 2271707, 4543414, 9086828, 11358535, 18173656, 22717070, 45434140, 90868280]

約数ペア:

[(1, 90868280), (2, 45434140), (4, 22717070), (5, 18173656), (8, 11358535), (10, 9086828), (20, 4543414), (40, 2271707), (821, 110680), (1642, 55340), (2767, 32840), (3284, 27670), (4105, 22136), (5534, 16420), (6568, 13835), (8210, 11068)]