890360080

素因数分解:

$2^4\times 5^1\times {\mathrm{11129501}}^1$

素因数の和:11129514

約数の個数: 20

約数和(自身を含む): 2070087372

約数和(自身を除く): 1179727292

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 11129501, 22259002, 44518004, 55647505, 89036008, 111295010, 178072016, 222590020, 445180040, 890360080]

約数ペア:

[(1, 890360080), (2, 445180040), (4, 222590020), (5, 178072016), (8, 111295010), (10, 89036008), (16, 55647505), (20, 44518004), (40, 22259002), (80, 11129501)]