80790040

素因数分解:

$2^3\times 5^1\times {\mathrm{2019751}}^1$

素因数の和:2019762

約数の個数: 16

約数和(自身を含む): 181777680

約数和(自身を除く): 100987640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2019751, 4039502, 8079004, 10098755, 16158008, 20197510, 40395020, 80790040]

約数ペア:

[(1, 80790040), (2, 40395020), (4, 20197510), (5, 16158008), (8, 10098755), (10, 8079004), (20, 4039502), (40, 2019751)]