90140080

素因数分解:

$2^4\times 5^1\times {\mathrm{1126751}}^1$

素因数の和:1126764

約数の個数: 20

約数和(自身を含む): 209575872

約数和(自身を除く): 119435792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1126751, 2253502, 4507004, 5633755, 9014008, 11267510, 18028016, 22535020, 45070040, 90140080]

約数ペア:

[(1, 90140080), (2, 45070040), (4, 22535020), (5, 18028016), (8, 11267510), (10, 9014008), (16, 5633755), (20, 4507004), (40, 2253502), (80, 1126751)]