20455930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{10939}}^1$

素因数の和:10974

約数の個数: 32

約数和(自身を含む): 42534720

約数和(自身を除く): 22078790

約数列:

[1, 2, 5, 10, 11, 17, 22, 34, 55, 85, 110, 170, 187, 374, 935, 1870, 10939, 21878, 54695, 109390, 120329, 185963, 240658, 371926, 601645, 929815, 1203290, 1859630, 2045593, 4091186, 10227965, 20455930]

約数ペア:

[(1, 20455930), (2, 10227965), (5, 4091186), (10, 2045593), (11, 1859630), (17, 1203290), (22, 929815), (34, 601645), (55, 371926), (85, 240658), (110, 185963), (170, 120329), (187, 109390), (374, 54695), (935, 21878), (1870, 10939)]