15954320

素因数分解:

$2^4\times 5^1\times {\mathrm{199429}}^1$

素因数の和:199442

約数の個数: 20

約数和(自身を含む): 37093980

約数和(自身を除く): 21139660

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199429, 398858, 797716, 997145, 1595432, 1994290, 3190864, 3988580, 7977160, 15954320]

約数ペア:

[(1, 15954320), (2, 7977160), (4, 3988580), (5, 3190864), (8, 1994290), (10, 1595432), (16, 997145), (20, 797716), (40, 398858), (80, 199429)]