77970040

素因数分解:

$2^3\times 5^1\times {\mathrm{1949251}}^1$

素因数の和:1949262

約数の個数: 16

約数和(自身を含む): 175432680

約数和(自身を除く): 97462640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1949251, 3898502, 7797004, 9746255, 15594008, 19492510, 38985020, 77970040]

約数ペア:

[(1, 77970040), (2, 38985020), (4, 19492510), (5, 15594008), (8, 9746255), (10, 7797004), (20, 3898502), (40, 1949251)]