397715690

素因数分解:

$2^1\times 5^1\times {\mathrm{409}}^1\times {\mathrm{97241}}^1$

素因数の和:97657

約数の個数: 16

約数和(自身を含む): 717645960

約数和(自身を除く): 319930270

約数列:

[1, 2, 5, 10, 409, 818, 2045, 4090, 97241, 194482, 486205, 972410, 39771569, 79543138, 198857845, 397715690]

約数ペア:

[(1, 397715690), (2, 198857845), (5, 79543138), (10, 39771569), (409, 972410), (818, 486205), (2045, 194482), (4090, 97241)]