29909090

素因数分解:

$2^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{72949}}^1$

素因数の和:72997

約数の個数: 16

約数和(自身を含む): 55150200

約数和(自身を除く): 25241110

約数列:

[1, 2, 5, 10, 41, 82, 205, 410, 72949, 145898, 364745, 729490, 2990909, 5981818, 14954545, 29909090]

約数ペア:

[(1, 29909090), (2, 14954545), (5, 5981818), (10, 2990909), (41, 729490), (82, 364745), (205, 145898), (410, 72949)]