12886520

素因数分解:

$2^3\times 5^1\times {\mathrm{113}}^1\times {\mathrm{2851}}^1$

素因数の和:2975

約数の個数: 32

約数和(自身を含む): 29261520

約数和(自身を除く): 16375000

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 113, 226, 452, 565, 904, 1130, 2260, 2851, 4520, 5702, 11404, 14255, 22808, 28510, 57020, 114040, 322163, 644326, 1288652, 1610815, 2577304, 3221630, 6443260, 12886520]

約数ペア:

[(1, 12886520), (2, 6443260), (4, 3221630), (5, 2577304), (8, 1610815), (10, 1288652), (20, 644326), (40, 322163), (113, 114040), (226, 57020), (452, 28510), (565, 22808), (904, 14255), (1130, 11404), (2260, 5702), (2851, 4520)]