3929405

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{251}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 4935168

約数和(自身を除く): 1005763

約数列:

[1, 5, 31, 101, 155, 251, 505, 1255, 3131, 7781, 15655, 25351, 38905, 126755, 785881, 3929405]

約数ペア:

[(1, 3929405), (5, 785881), (31, 126755), (101, 38905), (155, 25351), (251, 15655), (505, 7781), (1255, 3131)]