88997680

素因数分解:

$2^4\times 5^1\times {\mathrm{1112471}}^1$

素因数の和:1112484

約数の個数: 20

約数和(自身を含む): 206919792

約数和(自身を除く): 117922112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1112471, 2224942, 4449884, 5562355, 8899768, 11124710, 17799536, 22249420, 44498840, 88997680]

約数ペア:

[(1, 88997680), (2, 44498840), (4, 22249420), (5, 17799536), (8, 11124710), (10, 8899768), (16, 5562355), (20, 4449884), (40, 2224942), (80, 1112471)]