20512191590

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{439}}^1\times {\mathrm{424771}}^1$

素因数の和:425228

約数の個数: 32

約数和(自身を含む): 40370330880

約数和(自身を除く): 19858139290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 439, 878, 2195, 4390, 4829, 9658, 24145, 48290, 424771, 849542, 2123855, 4247710, 4672481, 9344962, 23362405, 46724810, 186474469, 372948938, 932372345, 1864744690, 2051219159, 4102438318, 10256095795, 20512191590]

約数ペア:

[(1, 20512191590), (2, 10256095795), (5, 4102438318), (10, 2051219159), (11, 1864744690), (22, 932372345), (55, 372948938), (110, 186474469), (439, 46724810), (878, 23362405), (2195, 9344962), (4390, 4672481), (4829, 4247710), (9658, 2123855), (24145, 849542), (48290, 424771)]