61654180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2213}}^1$

素因数の和:2428

約数の個数: 48

約数和(自身を含む): 148780800

約数和(自身を除く): 87126620

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 199, 398, 796, 995, 1393, 1990, 2213, 2786, 3980, 4426, 5572, 6965, 8852, 11065, 13930, 15491, 22130, 27860, 30982, 44260, 61964, 77455, 154910, 309820, 440387, 880774, 1761548, 2201935, 3082709, 4403870, 6165418, 8807740, 12330836, 15413545, 30827090, 61654180]

約数ペア:

[(1, 61654180), (2, 30827090), (4, 15413545), (5, 12330836), (7, 8807740), (10, 6165418), (14, 4403870), (20, 3082709), (28, 2201935), (35, 1761548), (70, 880774), (140, 440387), (199, 309820), (398, 154910), (796, 77455), (995, 61964), (1393, 44260), (1990, 30982), (2213, 27860), (2786, 22130), (3980, 15491), (4426, 13930), (5572, 11065), (6965, 8852)]