86840840

素因数分解:

$2^3\times 5^1\times {\mathrm{2171021}}^1$

素因数の和:2171032

約数の個数: 16

約数和(自身を含む): 195391980

約数和(自身を除く): 108551140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 2171021, 4342042, 8684084, 10855105, 17368168, 21710210, 43420420, 86840840]

約数ペア:

[(1, 86840840), (2, 43420420), (4, 21710210), (5, 17368168), (8, 10855105), (10, 8684084), (20, 4342042), (40, 2171021)]