90440080

素因数分解:

$2^4\times 5^1\times {\mathrm{1130501}}^1$

素因数の和:1130514

約数の個数: 20

約数和(自身を含む): 210273372

約数和(自身を除く): 119833292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1130501, 2261002, 4522004, 5652505, 9044008, 11305010, 18088016, 22610020, 45220040, 90440080]

約数ペア:

[(1, 90440080), (2, 45220040), (4, 22610020), (5, 18088016), (8, 11305010), (10, 9044008), (16, 5652505), (20, 4522004), (40, 2261002), (80, 1130501)]