20123408456

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{47460869}}^1$

素因数の和:47460928

約数の個数: 16

約数和(自身を含む): 38443304700

約数和(自身を除く): 18319896244

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 47460869, 94921738, 189843476, 379686952, 2515426057, 5030852114, 10061704228, 20123408456]

約数ペア:

[(1, 20123408456), (2, 10061704228), (4, 5030852114), (8, 2515426057), (53, 379686952), (106, 189843476), (212, 94921738), (424, 47460869)]