31195280

素因数分解:

$2^4\times 5^1\times {\mathrm{389941}}^1$

素因数の和:389954

約数の個数: 20

約数和(自身を含む): 72529212

約数和(自身を除く): 41333932

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389941, 779882, 1559764, 1949705, 3119528, 3899410, 6239056, 7798820, 15597640, 31195280]

約数ペア:

[(1, 31195280), (2, 15597640), (4, 7798820), (5, 6239056), (8, 3899410), (10, 3119528), (16, 1949705), (20, 1559764), (40, 779882), (80, 389941)]