19685080

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2473}}^1$

素因数の和:2683

約数の個数: 32

約数和(自身を含む): 44532000

約数和(自身を除く): 24846920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2473, 3980, 4946, 7960, 9892, 12365, 19784, 24730, 49460, 98920, 492127, 984254, 1968508, 2460635, 3937016, 4921270, 9842540, 19685080]

約数ペア:

[(1, 19685080), (2, 9842540), (4, 4921270), (5, 3937016), (8, 2460635), (10, 1968508), (20, 984254), (40, 492127), (199, 98920), (398, 49460), (796, 24730), (995, 19784), (1592, 12365), (1990, 9892), (2473, 7960), (3980, 4946)]