20205160

素因数分解:

$2^3\times 5^1\times {\mathrm{505129}}^1$

素因数の和:505140

約数の個数: 16

約数和(自身を含む): 45461700

約数和(自身を除く): 25256540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505129, 1010258, 2020516, 2525645, 4041032, 5051290, 10102580, 20205160]

約数ペア:

[(1, 20205160), (2, 10102580), (4, 5051290), (5, 4041032), (8, 2525645), (10, 2020516), (20, 1010258), (40, 505129)]