12781550

素因数分解:

$2^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2531}}^1$

素因数の和:2644

約数の個数: 24

約数和(自身を含む): 24018552

約数和(自身を除く): 11237002

約数列:

[1, 2, 5, 10, 25, 50, 101, 202, 505, 1010, 2525, 2531, 5050, 5062, 12655, 25310, 63275, 126550, 255631, 511262, 1278155, 2556310, 6390775, 12781550]

約数ペア:

[(1, 12781550), (2, 6390775), (5, 2556310), (10, 1278155), (25, 511262), (50, 255631), (101, 126550), (202, 63275), (505, 25310), (1010, 12655), (2525, 5062), (2531, 5050)]