20461820

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{35279}}^1$

素因数の和:35317

約数の個数: 24

約数和(自身を含む): 44452800

約数和(自身を除く): 23990980

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 35279, 70558, 141116, 176395, 352790, 705580, 1023091, 2046182, 4092364, 5115455, 10230910, 20461820]

約数ペア:

[(1, 20461820), (2, 10230910), (4, 5115455), (5, 4092364), (10, 2046182), (20, 1023091), (29, 705580), (58, 352790), (116, 176395), (145, 141116), (290, 70558), (580, 35279)]