87996820

素因数分解:

$2^2\times 5^1\times {\mathrm{313}}^1\times {\mathrm{14057}}^1$

素因数の和:14379

約数の個数: 24

約数和(自身を含む): 185396904

約数和(自身を除く): 97400084

約数列:

[1, 2, 4, 5, 10, 20, 313, 626, 1252, 1565, 3130, 6260, 14057, 28114, 56228, 70285, 140570, 281140, 4399841, 8799682, 17599364, 21999205, 43998410, 87996820]

約数ペア:

[(1, 87996820), (2, 43998410), (4, 21999205), (5, 17599364), (10, 8799682), (20, 4399841), (313, 281140), (626, 140570), (1252, 70285), (1565, 56228), (3130, 28114), (6260, 14057)]