640915462

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{1039}}^1\times {\mathrm{2549}}^1$

素因数の和:3612

約数の個数: 24

約数和(自身を含む): 1058148000

約数和(自身を除く): 417232538

約数列:

[1, 2, 11, 22, 121, 242, 1039, 2078, 2549, 5098, 11429, 22858, 28039, 56078, 125719, 251438, 308429, 616858, 2648411, 5296822, 29132521, 58265042, 320457731, 640915462]

約数ペア:

[(1, 640915462), (2, 320457731), (11, 58265042), (22, 29132521), (121, 5296822), (242, 2648411), (1039, 616858), (2078, 308429), (2549, 251438), (5098, 125719), (11429, 56078), (22858, 28039)]