12531580

素因数分解:

$2^2\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1231}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 26389440

約数和(自身を除く): 13857860

約数列:

[1, 2, 4, 5, 10, 20, 509, 1018, 1231, 2036, 2462, 2545, 4924, 5090, 6155, 10180, 12310, 24620, 626579, 1253158, 2506316, 3132895, 6265790, 12531580]

約数ペア:

[(1, 12531580), (2, 6265790), (4, 3132895), (5, 2506316), (10, 1253158), (20, 626579), (509, 24620), (1018, 12310), (1231, 10180), (2036, 6155), (2462, 5090), (2545, 4924)]