268742020

素因数分解:

$2^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{10987}}^1$

素因数の和:12219

約数の個数: 24

約数和(自身を含む): 564871104

約数和(自身を除く): 296129084

約数列:

[1, 2, 4, 5, 10, 20, 1223, 2446, 4892, 6115, 10987, 12230, 21974, 24460, 43948, 54935, 109870, 219740, 13437101, 26874202, 53748404, 67185505, 134371010, 268742020]

約数ペア:

[(1, 268742020), (2, 134371010), (4, 67185505), (5, 53748404), (10, 26874202), (20, 13437101), (1223, 219740), (2446, 109870), (4892, 54935), (6115, 43948), (10987, 24460), (12230, 21974)]