6640720

素因数分解:

$2^4\times 5^1\times {\mathrm{83009}}^1$

素因数の和:83022

約数の個数: 20

約数和(自身を含む): 15439860

約数和(自身を除く): 8799140

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 83009, 166018, 332036, 415045, 664072, 830090, 1328144, 1660180, 3320360, 6640720]

約数ペア:

[(1, 6640720), (2, 3320360), (4, 1660180), (5, 1328144), (8, 830090), (10, 664072), (16, 415045), (20, 332036), (40, 166018), (80, 83009)]