520090240

素因数分解:

$2^7\times 5^1\times {\mathrm{812641}}^1$

素因数の和:812660

約数の個数: 32

約数和(自身を含む): 1243342260

約数和(自身を除く): 723252020

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 812641, 1625282, 3250564, 4063205, 6501128, 8126410, 13002256, 16252820, 26004512, 32505640, 52009024, 65011280, 104018048, 130022560, 260045120, 520090240]

約数ペア:

[(1, 520090240), (2, 260045120), (4, 130022560), (5, 104018048), (8, 65011280), (10, 52009024), (16, 32505640), (20, 26004512), (32, 16252820), (40, 13002256), (64, 8126410), (80, 6501128), (128, 4063205), (160, 3250564), (320, 1625282), (640, 812641)]