20624360

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2591}}^1$

素因数の和:2801

約数の個数: 32

約数和(自身を含む): 46656000

約数和(自身を除く): 26031640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2591, 3980, 5182, 7960, 10364, 12955, 20728, 25910, 51820, 103640, 515609, 1031218, 2062436, 2578045, 4124872, 5156090, 10312180, 20624360]

約数ペア:

[(1, 20624360), (2, 10312180), (4, 5156090), (5, 4124872), (8, 2578045), (10, 2062436), (20, 1031218), (40, 515609), (199, 103640), (398, 51820), (796, 25910), (995, 20728), (1592, 12955), (1990, 10364), (2591, 7960), (3980, 5182)]