126756400

素因数分解:

$2^4\times 5^2\times {\mathrm{316891}}^1$

素因数の和:316909

約数の個数: 30

約数和(自身を含む): 304533212

約数和(自身を除く): 177776812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 316891, 633782, 1267564, 1584455, 2535128, 3168910, 5070256, 6337820, 7922275, 12675640, 15844550, 25351280, 31689100, 63378200, 126756400]

約数ペア:

[(1, 126756400), (2, 63378200), (4, 31689100), (5, 25351280), (8, 15844550), (10, 12675640), (16, 7922275), (20, 6337820), (25, 5070256), (40, 3168910), (50, 2535128), (80, 1584455), (100, 1267564), (200, 633782), (400, 316891)]