87408980

素因数分解:

$2^2\times 5^1\times {\mathrm{4370449}}^1$

素因数の和:4370458

約数の個数: 12

約数和(自身を含む): 183558900

約数和(自身を除く): 96149920

約数列:

[1, 2, 4, 5, 10, 20, 4370449, 8740898, 17481796, 21852245, 43704490, 87408980]

約数ペア:

[(1, 87408980), (2, 43704490), (4, 21852245), (5, 17481796), (10, 8740898), (20, 4370449)]