20151580

素因数分解:

$2^2\times 5^1\times {\mathrm{653}}^1\times {\mathrm{1543}}^1$

素因数の和:2205

約数の個数: 24

約数和(自身を含む): 42410592

約数和(自身を除く): 22259012

約数列:

[1, 2, 4, 5, 10, 20, 653, 1306, 1543, 2612, 3086, 3265, 6172, 6530, 7715, 13060, 15430, 30860, 1007579, 2015158, 4030316, 5037895, 10075790, 20151580]

約数ペア:

[(1, 20151580), (2, 10075790), (4, 5037895), (5, 4030316), (10, 2015158), (20, 1007579), (653, 30860), (1306, 15430), (1543, 13060), (2612, 7715), (3086, 6530), (3265, 6172)]