200401820

素因数分解:

$2^2\times 5^1\times {\mathrm{409}}^1\times {\mathrm{24499}}^1$

素因数の和:24917

約数の個数: 24

約数和(自身を含む): 421890000

約数和(自身を除く): 221488180

約数列:

[1, 2, 4, 5, 10, 20, 409, 818, 1636, 2045, 4090, 8180, 24499, 48998, 97996, 122495, 244990, 489980, 10020091, 20040182, 40080364, 50100455, 100200910, 200401820]

約数ペア:

[(1, 200401820), (2, 100200910), (4, 50100455), (5, 40080364), (10, 20040182), (20, 10020091), (409, 489980), (818, 244990), (1636, 122495), (2045, 97996), (4090, 48998), (8180, 24499)]