77988740

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{13877}}^1$

素因数の和:14167

約数の個数: 24

約数和(自身を含む): 164371032

約数和(自身を除く): 86382292

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 1124, 1405, 2810, 5620, 13877, 27754, 55508, 69385, 138770, 277540, 3899437, 7798874, 15597748, 19497185, 38994370, 77988740]

約数ペア:

[(1, 77988740), (2, 38994370), (4, 19497185), (5, 15597748), (10, 7798874), (20, 3899437), (281, 277540), (562, 138770), (1124, 69385), (1405, 55508), (2810, 27754), (5620, 13877)]