15660080

素因数分解:

$2^4\times 5^1\times {\mathrm{195751}}^1$

素因数の和:195764

約数の個数: 20

約数和(自身を含む): 36409872

約数和(自身を除く): 20749792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 195751, 391502, 783004, 978755, 1566008, 1957510, 3132016, 3915020, 7830040, 15660080]

約数ペア:

[(1, 15660080), (2, 7830040), (4, 3915020), (5, 3132016), (8, 1957510), (10, 1566008), (16, 978755), (20, 783004), (40, 391502), (80, 195751)]