99907580

素因数分解:

$2^2\times 5^1\times {\mathrm{4995379}}^1$

素因数の和:4995388

約数の個数: 12

約数和(自身を含む): 209805960

約数和(自身を除く): 109898380

約数列:

[1, 2, 4, 5, 10, 20, 4995379, 9990758, 19981516, 24976895, 49953790, 99907580]

約数ペア:

[(1, 99907580), (2, 49953790), (4, 24976895), (5, 19981516), (10, 9990758), (20, 4995379)]