65705620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{6691}}^1$

素因数の和:7191

約数の個数: 24

約数和(自身を含む): 138283488

約数和(自身を除く): 72577868

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 6691, 9820, 13382, 26764, 33455, 66910, 133820, 3285281, 6570562, 13141124, 16426405, 32852810, 65705620]

約数ペア:

[(1, 65705620), (2, 32852810), (4, 16426405), (5, 13141124), (10, 6570562), (20, 3285281), (491, 133820), (982, 66910), (1964, 33455), (2455, 26764), (4910, 13382), (6691, 9820)]