12700855

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{1223}}^1$

素因数の和:1326

約数の個数: 16

約数和(自身を含む): 15980544

約数和(自身を除く): 3279689

約数列:

[1, 5, 31, 67, 155, 335, 1223, 2077, 6115, 10385, 37913, 81941, 189565, 409705, 2540171, 12700855]

約数ペア:

[(1, 12700855), (5, 2540171), (31, 409705), (67, 189565), (155, 81941), (335, 37913), (1223, 10385), (2077, 6115)]