290804540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1118479}}^1$

素因数の和:1118501

約数の個数: 24

約数和(自身を含む): 657666240

約数和(自身を除く): 366861700

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 1118479, 2236958, 4473916, 5592395, 11184790, 14540227, 22369580, 29080454, 58160908, 72701135, 145402270, 290804540]

約数ペア:

[(1, 290804540), (2, 145402270), (4, 72701135), (5, 58160908), (10, 29080454), (13, 22369580), (20, 14540227), (26, 11184790), (52, 5592395), (65, 4473916), (130, 2236958), (260, 1118479)]