12870580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20759}}^1$

素因数の和:20799

約数の個数: 24

約数和(自身を含む): 27901440

約数和(自身を除く): 15030860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20759, 41518, 83036, 103795, 207590, 415180, 643529, 1287058, 2574116, 3217645, 6435290, 12870580]

約数ペア:

[(1, 12870580), (2, 6435290), (4, 3217645), (5, 2574116), (10, 1287058), (20, 643529), (31, 415180), (62, 207590), (124, 103795), (155, 83036), (310, 41518), (620, 20759)]