168490040

素因数分解:

$2^3\times 5^1\times {\mathrm{4212251}}^1$

素因数の和:4212262

約数の個数: 16

約数和(自身を含む): 379102680

約数和(自身を除く): 210612640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4212251, 8424502, 16849004, 21061255, 33698008, 42122510, 84245020, 168490040]

約数ペア:

[(1, 168490040), (2, 84245020), (4, 42122510), (5, 33698008), (8, 21061255), (10, 16849004), (20, 8424502), (40, 4212251)]