71258420

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{3911}}^1$

素因数の和:4831

約数の個数: 24

約数和(自身を含む): 149845248

約数和(自身を除く): 78586828

約数列:

[1, 2, 4, 5, 10, 20, 911, 1822, 3644, 3911, 4555, 7822, 9110, 15644, 18220, 19555, 39110, 78220, 3562921, 7125842, 14251684, 17814605, 35629210, 71258420]

約数ペア:

[(1, 71258420), (2, 35629210), (4, 17814605), (5, 14251684), (10, 7125842), (20, 3562921), (911, 78220), (1822, 39110), (3644, 19555), (3911, 18220), (4555, 15644), (7822, 9110)]