291240220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{355171}}^1$

素因数の和:355221

約数の個数: 24

約数和(自身を含む): 626523408

約数和(自身を除く): 335283188

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 355171, 710342, 1420684, 1775855, 3551710, 7103420, 14562011, 29124022, 58248044, 72810055, 145620110, 291240220]

約数ペア:

[(1, 291240220), (2, 145620110), (4, 72810055), (5, 58248044), (10, 29124022), (20, 14562011), (41, 7103420), (82, 3551710), (164, 1775855), (205, 1420684), (410, 710342), (820, 355171)]