71128520

素因数分解:

$2^3\times 5^1\times {\mathrm{1778213}}^1$

素因数の和:1778224

約数の個数: 16

約数和(自身を含む): 160039260

約数和(自身を除く): 88910740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1778213, 3556426, 7112852, 8891065, 14225704, 17782130, 35564260, 71128520]

約数ペア:

[(1, 71128520), (2, 35564260), (4, 17782130), (5, 14225704), (8, 8891065), (10, 7112852), (20, 3556426), (40, 1778213)]