20528028080

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{8009}}^1$

素因数の和:8251

約数の個数: 160

約数和(自身を含む): 57210624000

約数和(自身を除く): 36682595920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 199, 230, 280, 322, 368, 398, 460, 560, 644, 796, 805, 920, 995, 1288, 1393, 1592, 1610, 1840, 1990, 2576, 2786, 3184, 3220, 3980, 4577, 5572, 6440, 6965, 7960, 8009, 9154, 11144, 12880, 13930, 15920, 16018, 18308, 22288, 22885, 27860, 32036, 32039, 36616, 40045, 45770, 55720, 56063, 64072, 64078, 73232, 80090, 91540, 111440, 112126, 128144, 128156, 160180, 160195, 183080, 184207, 224252, 256312, 280315, 320360, 320390, 366160, 368414, 448504, 512624, 560630, 640720, 640780, 736828, 897008, 921035, 1121260, 1281560, 1289449, 1473656, 1593791, 1842070, 2242520, 2563120, 2578898, 2947312, 3187582, 3684140, 4485040, 5157796, 6375164, 6447245, 7368280, 7968955, 10315592, 11156537, 12750328, 12894490, 14736560, 15937910, 20631184, 22313074, 25500656, 25788980, 31875820, 36657193, 44626148, 51577960, 55782685, 63751640, 73314386, 89252296, 103155920, 111565370, 127503280, 146628772, 178504592, 183285965, 223130740, 256600351, 293257544, 366571930, 446261480, 513200702, 586515088, 733143860, 892522960, 1026401404, 1283001755, 1466287720, 2052802808, 2566003510, 2932575440, 4105605616, 5132007020, 10264014040, 20528028080]

約数ペア:

[(1, 20528028080), (2, 10264014040), (4, 5132007020), (5, 4105605616), (7, 2932575440), (8, 2566003510), (10, 2052802808), (14, 1466287720), (16, 1283001755), (20, 1026401404), (23, 892522960), (28, 733143860), (35, 586515088), (40, 513200702), (46, 446261480), (56, 366571930), (70, 293257544), (80, 256600351), (92, 223130740), (112, 183285965), (115, 178504592), (140, 146628772), (161, 127503280), (184, 111565370), (199, 103155920), (230, 89252296), (280, 73314386), (322, 63751640), (368, 55782685), (398, 51577960), (460, 44626148), (560, 36657193), (644, 31875820), (796, 25788980), (805, 25500656), (920, 22313074), (995, 20631184), (1288, 15937910), (1393, 14736560), (1592, 12894490), (1610, 12750328), (1840, 11156537), (1990, 10315592), (2576, 7968955), (2786, 7368280), (3184, 6447245), (3220, 6375164), (3980, 5157796), (4577, 4485040), (5572, 3684140), (6440, 3187582), (6965, 2947312), (7960, 2578898), (8009, 2563120), (9154, 2242520), (11144, 1842070), (12880, 1593791), (13930, 1473656), (15920, 1289449), (16018, 1281560), (18308, 1121260), (22288, 921035), (22885, 897008), (27860, 736828), (32036, 640780), (32039, 640720), (36616, 560630), (40045, 512624), (45770, 448504), (55720, 368414), (56063, 366160), (64072, 320390), (64078, 320360), (73232, 280315), (80090, 256312), (91540, 224252), (111440, 184207), (112126, 183080), (128144, 160195), (128156, 160180)]