128515508715

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{778881871}}^1$

素因数の和:778881890

約数の個数: 16

約数和(自身を含む): 224317979136

約数和(自身を除く): 95802470421

約数列:

[1, 3, 5, 11, 15, 33, 55, 165, 778881871, 2336645613, 3894409355, 8567700581, 11683228065, 25703101743, 42838502905, 128515508715]

約数ペア:

[(1, 128515508715), (3, 42838502905), (5, 25703101743), (11, 11683228065), (15, 8567700581), (33, 3894409355), (55, 2336645613), (165, 778881871)]