208624420

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{336491}}^1$

素因数の和:336531

約数の個数: 24

約数和(自身を含む): 452245248

約数和(自身を除く): 243620828

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 336491, 672982, 1345964, 1682455, 3364910, 6729820, 10431221, 20862442, 41724884, 52156105, 104312210, 208624420]

約数ペア:

[(1, 208624420), (2, 104312210), (4, 52156105), (5, 41724884), (10, 20862442), (20, 10431221), (31, 6729820), (62, 3364910), (124, 1682455), (155, 1345964), (310, 672982), (620, 336491)]