87800620

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{8941}}^1$

素因数の和:9441

約数の個数: 24

約数和(自身を含む): 184777488

約数和(自身を除く): 96976868

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 8941, 9820, 17882, 35764, 44705, 89410, 178820, 4390031, 8780062, 17560124, 21950155, 43900310, 87800620]

約数ペア:

[(1, 87800620), (2, 43900310), (4, 21950155), (5, 17560124), (10, 8780062), (20, 4390031), (491, 178820), (982, 89410), (1964, 44705), (2455, 35764), (4910, 17882), (8941, 9820)]