128999915

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{213223}}^1$

素因数の和:213250

約数の個数: 12

約数和(自身を含む): 170152752

約数和(自身を除く): 41152837

約数列:

[1, 5, 11, 55, 121, 605, 213223, 1066115, 2345453, 11727265, 25799983, 128999915]

約数ペア:

[(1, 128999915), (5, 25799983), (11, 11727265), (55, 2345453), (121, 1066115), (605, 213223)]