291225020

素因数分解:

$2^2\times 5^1\times {\mathrm{14561251}}^1$

素因数の和:14561260

約数の個数: 12

約数和(自身を含む): 611572584

約数和(自身を除く): 320347564

約数列:

[1, 2, 4, 5, 10, 20, 14561251, 29122502, 58245004, 72806255, 145612510, 291225020]

約数ペア:

[(1, 291225020), (2, 145612510), (4, 72806255), (5, 58245004), (10, 29122502), (20, 14561251)]