209904325

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{223}}^1\times {\mathrm{1637}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 272982528

約数和(自身を除く): 63078203

約数列:

[1, 5, 23, 25, 115, 223, 575, 1115, 1637, 5129, 5575, 8185, 25645, 37651, 40925, 128225, 188255, 365051, 941275, 1825255, 8396173, 9126275, 41980865, 209904325]

約数ペア:

[(1, 209904325), (5, 41980865), (23, 9126275), (25, 8396173), (115, 1825255), (223, 941275), (575, 365051), (1115, 188255), (1637, 128225), (5129, 40925), (5575, 37651), (8185, 25645)]