20012325

素因数分解:

$3^1\times 5^2\times {\mathrm{163}}^1\times {\mathrm{1637}}^1$

素因数の和:1813

約数の個数: 24

約数和(自身を含む): 33310368

約数和(自身を除く): 13298043

約数列:

[1, 3, 5, 15, 25, 75, 163, 489, 815, 1637, 2445, 4075, 4911, 8185, 12225, 24555, 40925, 122775, 266831, 800493, 1334155, 4002465, 6670775, 20012325]

約数ペア:

[(1, 20012325), (3, 6670775), (5, 4002465), (15, 1334155), (25, 800493), (75, 266831), (163, 122775), (489, 40925), (815, 24555), (1637, 12225), (2445, 8185), (4075, 4911)]