20548740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1721}}^1$

素因数の和:1932

約数の個数: 48

約数和(自身を含む): 57859200

約数和(自身を除く): 37310460

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 199, 398, 597, 796, 995, 1194, 1721, 1990, 2388, 2985, 3442, 3980, 5163, 5970, 6884, 8605, 10326, 11940, 17210, 20652, 25815, 34420, 51630, 103260, 342479, 684958, 1027437, 1369916, 1712395, 2054874, 3424790, 4109748, 5137185, 6849580, 10274370, 20548740]

約数ペア:

[(1, 20548740), (2, 10274370), (3, 6849580), (4, 5137185), (5, 4109748), (6, 3424790), (10, 2054874), (12, 1712395), (15, 1369916), (20, 1027437), (30, 684958), (60, 342479), (199, 103260), (398, 51630), (597, 34420), (796, 25815), (995, 20652), (1194, 17210), (1721, 11940), (1990, 10326), (2388, 8605), (2985, 6884), (3442, 5970), (3980, 5163)]