80530040

素因数分解:

$2^3\times 5^1\times {\mathrm{2013251}}^1$

素因数の和:2013262

約数の個数: 16

約数和(自身を含む): 181192680

約数和(自身を除く): 100662640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2013251, 4026502, 8053004, 10066255, 16106008, 20132510, 40265020, 80530040]

約数ペア:

[(1, 80530040), (2, 40265020), (4, 20132510), (5, 16106008), (8, 10066255), (10, 8053004), (20, 4026502), (40, 2013251)]