91515920

素因数分解:

$2^4\times 5^1\times {\mathrm{1143949}}^1$

素因数の和:1143962

約数の個数: 20

約数和(自身を含む): 212774700

約数和(自身を除く): 121258780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1143949, 2287898, 4575796, 5719745, 9151592, 11439490, 18303184, 22878980, 45757960, 91515920]

約数ペア:

[(1, 91515920), (2, 45757960), (4, 22878980), (5, 18303184), (8, 11439490), (10, 9151592), (16, 5719745), (20, 4575796), (40, 2287898), (80, 1143949)]