25107020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{17681}}^1$

素因数の和:17761

約数の個数: 24

約数和(自身を含む): 53470368

約数和(自身を除く): 28363348

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 17681, 35362, 70724, 88405, 176810, 353620, 1255351, 2510702, 5021404, 6276755, 12553510, 25107020]

約数ペア:

[(1, 25107020), (2, 12553510), (4, 6276755), (5, 5021404), (10, 2510702), (20, 1255351), (71, 353620), (142, 176810), (284, 88405), (355, 70724), (710, 35362), (1420, 17681)]