28110740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1009}}^1$

素因数の和:1224

約数の個数: 48

約数和(自身を含む): 67872000

約数和(自身を除く): 39761260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1009, 1393, 1990, 2018, 2786, 3980, 4036, 5045, 5572, 6965, 7063, 10090, 13930, 14126, 20180, 27860, 28252, 35315, 70630, 141260, 200791, 401582, 803164, 1003955, 1405537, 2007910, 2811074, 4015820, 5622148, 7027685, 14055370, 28110740]

約数ペア:

[(1, 28110740), (2, 14055370), (4, 7027685), (5, 5622148), (7, 4015820), (10, 2811074), (14, 2007910), (20, 1405537), (28, 1003955), (35, 803164), (70, 401582), (140, 200791), (199, 141260), (398, 70630), (796, 35315), (995, 28252), (1009, 27860), (1393, 20180), (1990, 14126), (2018, 13930), (2786, 10090), (3980, 7063), (4036, 6965), (5045, 5572)]