15998680

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{5479}}^1$

素因数の和:5563

約数の個数: 32

約数和(自身を含む): 36496800

約数和(自身を除く): 20498120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 5479, 10958, 21916, 27395, 43832, 54790, 109580, 219160, 399967, 799934, 1599868, 1999835, 3199736, 3999670, 7999340, 15998680]

約数ペア:

[(1, 15998680), (2, 7999340), (4, 3999670), (5, 3199736), (8, 1999835), (10, 1599868), (20, 799934), (40, 399967), (73, 219160), (146, 109580), (292, 54790), (365, 43832), (584, 27395), (730, 21916), (1460, 10958), (2920, 5479)]