128520460

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{221587}}^1$

素因数の和:221625

約数の個数: 24

約数和(自身を含む): 279200880

約数和(自身を除く): 150680420

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 221587, 443174, 886348, 1107935, 2215870, 4431740, 6426023, 12852046, 25704092, 32130115, 64260230, 128520460]

約数ペア:

[(1, 128520460), (2, 64260230), (4, 32130115), (5, 25704092), (10, 12852046), (20, 6426023), (29, 4431740), (58, 2215870), (116, 1107935), (145, 886348), (290, 443174), (580, 221587)]