904354820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{400157}}^1$

素因数の和:400279

約数の個数: 24

約数和(自身を含む): 1915956504

約数和(自身を除く): 1011601684

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 400157, 800314, 1600628, 2000785, 4001570, 8003140, 45217741, 90435482, 180870964, 226088705, 452177410, 904354820]

約数ペア:

[(1, 904354820), (2, 452177410), (4, 226088705), (5, 180870964), (10, 90435482), (20, 45217741), (113, 8003140), (226, 4001570), (452, 2000785), (565, 1600628), (1130, 800314), (2260, 400157)]