12996460

素因数分解:

$2^2\times 5^1\times {\mathrm{157}}^1\times {\mathrm{4139}}^1$

素因数の和:4305

約数の個数: 24

約数和(自身を含む): 27473040

約数和(自身を除く): 14476580

約数列:

[1, 2, 4, 5, 10, 20, 157, 314, 628, 785, 1570, 3140, 4139, 8278, 16556, 20695, 41390, 82780, 649823, 1299646, 2599292, 3249115, 6498230, 12996460]

約数ペア:

[(1, 12996460), (2, 6498230), (4, 3249115), (5, 2599292), (10, 1299646), (20, 649823), (157, 82780), (314, 41390), (628, 20695), (785, 16556), (1570, 8278), (3140, 4139)]