99938180

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{70379}}^1$

素因数の和:70459

約数の個数: 24

約数和(自身を含む): 212829120

約数和(自身を除く): 112890940

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 70379, 140758, 281516, 351895, 703790, 1407580, 4996909, 9993818, 19987636, 24984545, 49969090, 99938180]

約数ペア:

[(1, 99938180), (2, 49969090), (4, 24984545), (5, 19987636), (10, 9993818), (20, 4996909), (71, 1407580), (142, 703790), (284, 351895), (355, 281516), (710, 140758), (1420, 70379)]