12956140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20897}}^1$

素因数の和:20937

約数の個数: 24

約数和(自身を含む): 28086912

約数和(自身を除く): 15130772

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20897, 41794, 83588, 104485, 208970, 417940, 647807, 1295614, 2591228, 3239035, 6478070, 12956140]

約数ペア:

[(1, 12956140), (2, 6478070), (4, 3239035), (5, 2591228), (10, 1295614), (20, 647807), (31, 417940), (62, 208970), (124, 104485), (155, 83588), (310, 41794), (620, 20897)]