220487905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{223}}^1\times {\mathrm{17977}}^1$

素因数の和:18216

約数の個数: 16

約数和(自身を含む): 289949184

約数和(自身を除く): 69461279

約数列:

[1, 5, 11, 55, 223, 1115, 2453, 12265, 17977, 89885, 197747, 988735, 4008871, 20044355, 44097581, 220487905]

約数ペア:

[(1, 220487905), (5, 44097581), (11, 20044355), (55, 4008871), (223, 988735), (1115, 197747), (2453, 89885), (12265, 17977)]