81920520

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{151}}^1$

素因数の和:316

約数の個数: 192

約数和(自身を含む): 294503040

約数和(自身を除く): 212582520

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 30, 33, 36, 40, 44, 45, 55, 60, 66, 72, 88, 90, 99, 110, 120, 132, 137, 151, 165, 180, 198, 220, 264, 274, 302, 330, 360, 396, 411, 440, 453, 495, 548, 604, 660, 685, 755, 792, 822, 906, 990, 1096, 1208, 1233, 1320, 1359, 1370, 1507, 1510, 1644, 1661, 1812, 1980, 2055, 2265, 2466, 2718, 2740, 3014, 3020, 3288, 3322, 3624, 3960, 4110, 4521, 4530, 4932, 4983, 5436, 5480, 6028, 6040, 6165, 6644, 6795, 7535, 8220, 8305, 9042, 9060, 9864, 9966, 10872, 12056, 12330, 13288, 13563, 13590, 14949, 15070, 16440, 16610, 18084, 18120, 19932, 20687, 22605, 24660, 24915, 27126, 27180, 29898, 30140, 33220, 36168, 39864, 41374, 45210, 49320, 49830, 54252, 54360, 59796, 60280, 62061, 66440, 67815, 74745, 82748, 90420, 99660, 103435, 108504, 119592, 124122, 135630, 149490, 165496, 180840, 186183, 199320, 206870, 227557, 248244, 271260, 298980, 310305, 372366, 413740, 455114, 496488, 542520, 597960, 620610, 682671, 744732, 827480, 910228, 930915, 1137785, 1241220, 1365342, 1489464, 1820456, 1861830, 2048013, 2275570, 2482440, 2730684, 3413355, 3723660, 4096026, 4551140, 5461368, 6826710, 7447320, 8192052, 9102280, 10240065, 13653420, 16384104, 20480130, 27306840, 40960260, 81920520]

約数ペア:

[(1, 81920520), (2, 40960260), (3, 27306840), (4, 20480130), (5, 16384104), (6, 13653420), (8, 10240065), (9, 9102280), (10, 8192052), (11, 7447320), (12, 6826710), (15, 5461368), (18, 4551140), (20, 4096026), (22, 3723660), (24, 3413355), (30, 2730684), (33, 2482440), (36, 2275570), (40, 2048013), (44, 1861830), (45, 1820456), (55, 1489464), (60, 1365342), (66, 1241220), (72, 1137785), (88, 930915), (90, 910228), (99, 827480), (110, 744732), (120, 682671), (132, 620610), (137, 597960), (151, 542520), (165, 496488), (180, 455114), (198, 413740), (220, 372366), (264, 310305), (274, 298980), (302, 271260), (330, 248244), (360, 227557), (396, 206870), (411, 199320), (440, 186183), (453, 180840), (495, 165496), (548, 149490), (604, 135630), (660, 124122), (685, 119592), (755, 108504), (792, 103435), (822, 99660), (906, 90420), (990, 82748), (1096, 74745), (1208, 67815), (1233, 66440), (1320, 62061), (1359, 60280), (1370, 59796), (1507, 54360), (1510, 54252), (1644, 49830), (1661, 49320), (1812, 45210), (1980, 41374), (2055, 39864), (2265, 36168), (2466, 33220), (2718, 30140), (2740, 29898), (3014, 27180), (3020, 27126), (3288, 24915), (3322, 24660), (3624, 22605), (3960, 20687), (4110, 19932), (4521, 18120), (4530, 18084), (4932, 16610), (4983, 16440), (5436, 15070), (5480, 14949), (6028, 13590), (6040, 13563), (6165, 13288), (6644, 12330), (6795, 12056), (7535, 10872), (8220, 9966), (8305, 9864), (9042, 9060)]