20512897730

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157791521}}^1$

素因数の和:157791541

約数の個数: 16

約数和(自身を含む): 39763463544

約数和(自身を除く): 19250565814

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157791521, 315583042, 788957605, 1577915210, 2051289773, 4102579546, 10256448865, 20512897730]

約数ペア:

[(1, 20512897730), (2, 10256448865), (5, 4102579546), (10, 2051289773), (13, 1577915210), (26, 788957605), (65, 315583042), (130, 157791521)]