3947080

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{977}}^1$

素因数の和:1089

約数の個数: 32

約数和(自身を含む): 8978040

約数和(自身を除く): 5030960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 977, 1010, 1954, 2020, 3908, 4040, 4885, 7816, 9770, 19540, 39080, 98677, 197354, 394708, 493385, 789416, 986770, 1973540, 3947080]

約数ペア:

[(1, 3947080), (2, 1973540), (4, 986770), (5, 789416), (8, 493385), (10, 394708), (20, 197354), (40, 98677), (101, 39080), (202, 19540), (404, 9770), (505, 7816), (808, 4885), (977, 4040), (1010, 3908), (1954, 2020)]