66133820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{80651}}^1$

素因数の和:80701

約数の個数: 24

約数和(自身を含む): 142270128

約数和(自身を除く): 76136308

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 80651, 161302, 322604, 403255, 806510, 1613020, 3306691, 6613382, 13226764, 16533455, 33066910, 66133820]

約数ペア:

[(1, 66133820), (2, 33066910), (4, 16533455), (5, 13226764), (10, 6613382), (20, 3306691), (41, 1613020), (82, 806510), (164, 403255), (205, 322604), (410, 161302), (820, 80651)]