2008100180720

素因数分解:

$2^4\times 5^1\times {\mathrm{47}}^1\times {\mathrm{13679}}^1\times {\mathrm{39043}}^1$

素因数の和:52782

約数の個数: 80

約数和(自身を含む): 4768640501760

約数和(自身を除く): 2760540321040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 47, 80, 94, 188, 235, 376, 470, 752, 940, 1880, 3760, 13679, 27358, 39043, 54716, 68395, 78086, 109432, 136790, 156172, 195215, 218864, 273580, 312344, 390430, 547160, 624688, 642913, 780860, 1094320, 1285826, 1561720, 1835021, 2571652, 3123440, 3214565, 3670042, 5143304, 6429130, 7340084, 9175105, 10286608, 12858260, 14680168, 18350210, 25716520, 29360336, 36700420, 51433040, 73400840, 146801680, 534069197, 1068138394, 2136276788, 2670345985, 4272553576, 5340691970, 8545107152, 10681383940, 21362767880, 25101252259, 42725535760, 50202504518, 100405009036, 125506261295, 200810018072, 251012522590, 401620036144, 502025045180, 1004050090360, 2008100180720]

約数ペア:

[(1, 2008100180720), (2, 1004050090360), (4, 502025045180), (5, 401620036144), (8, 251012522590), (10, 200810018072), (16, 125506261295), (20, 100405009036), (40, 50202504518), (47, 42725535760), (80, 25101252259), (94, 21362767880), (188, 10681383940), (235, 8545107152), (376, 5340691970), (470, 4272553576), (752, 2670345985), (940, 2136276788), (1880, 1068138394), (3760, 534069197), (13679, 146801680), (27358, 73400840), (39043, 51433040), (54716, 36700420), (68395, 29360336), (78086, 25716520), (109432, 18350210), (136790, 14680168), (156172, 12858260), (195215, 10286608), (218864, 9175105), (273580, 7340084), (312344, 6429130), (390430, 5143304), (547160, 3670042), (624688, 3214565), (642913, 3123440), (780860, 2571652), (1094320, 1835021), (1285826, 1561720)]