20125220

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{3581}}^1$

素因数の和:3871

約数の個数: 24

約数和(自身を含む): 42425208

約数和(自身を除く): 22299988

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 3581, 5620, 7162, 14324, 17905, 35810, 71620, 1006261, 2012522, 4025044, 5031305, 10062610, 20125220]

約数ペア:

[(1, 20125220), (2, 10062610), (4, 5031305), (5, 4025044), (10, 2012522), (20, 1006261), (281, 71620), (562, 35810), (1124, 17905), (1405, 14324), (2810, 7162), (3581, 5620)]