12789515

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1\times {\mathrm{757}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 16008960

約数和(自身を除く): 3219445

約数列:

[1, 5, 31, 109, 155, 545, 757, 3379, 3785, 16895, 23467, 82513, 117335, 412565, 2557903, 12789515]

約数ペア:

[(1, 12789515), (5, 2557903), (31, 412565), (109, 117335), (155, 82513), (545, 23467), (757, 16895), (3379, 3785)]