3961645

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{419}}^1$

素因数の和:516

約数の個数: 16

約数和(自身を含む): 4999680

約数和(自身を除く): 1038035

約数列:

[1, 5, 31, 61, 155, 305, 419, 1891, 2095, 9455, 12989, 25559, 64945, 127795, 792329, 3961645]

約数ペア:

[(1, 3961645), (5, 792329), (31, 127795), (61, 64945), (155, 25559), (305, 12989), (419, 9455), (1891, 2095)]