40172890

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{9151}}^1$

素因数の和:9597

約数の個数: 16

約数和(自身を含む): 72483840

約数和(自身を除く): 32310950

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 9151, 18302, 45755, 91510, 4017289, 8034578, 20086445, 40172890]

約数ペア:

[(1, 40172890), (2, 20086445), (5, 8034578), (10, 4017289), (439, 91510), (878, 45755), (2195, 18302), (4390, 9151)]