820617120

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{593}}^1$

素因数の和:676

約数の個数: 216

約数和(自身を含む): 2898483588

約数和(自身を除く): 2077866468

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 31, 32, 36, 40, 45, 48, 60, 62, 72, 80, 90, 93, 96, 120, 124, 144, 155, 160, 180, 186, 240, 248, 279, 288, 310, 360, 372, 465, 480, 496, 558, 593, 620, 720, 744, 930, 961, 992, 1116, 1186, 1240, 1395, 1440, 1488, 1779, 1860, 1922, 2232, 2372, 2480, 2790, 2883, 2965, 2976, 3558, 3720, 3844, 4464, 4744, 4805, 4960, 5337, 5580, 5766, 5930, 7116, 7440, 7688, 8649, 8895, 8928, 9488, 9610, 10674, 11160, 11532, 11860, 14232, 14415, 14880, 15376, 17298, 17790, 18383, 18976, 19220, 21348, 22320, 23064, 23720, 26685, 28464, 28830, 30752, 34596, 35580, 36766, 38440, 42696, 43245, 44640, 46128, 47440, 53370, 55149, 56928, 57660, 69192, 71160, 73532, 76880, 85392, 86490, 91915, 92256, 94880, 106740, 110298, 115320, 138384, 142320, 147064, 153760, 165447, 170784, 172980, 183830, 213480, 220596, 230640, 275745, 276768, 284640, 294128, 330894, 345960, 367660, 426960, 441192, 461280, 551490, 569873, 588256, 661788, 691920, 735320, 827235, 853920, 882384, 1102980, 1139746, 1323576, 1383840, 1470640, 1654470, 1709619, 1764768, 2205960, 2279492, 2647152, 2849365, 2941280, 3308940, 3419238, 4411920, 4558984, 5128857, 5294304, 5698730, 6617880, 6838476, 8548095, 8823840, 9117968, 10257714, 11397460, 13235760, 13676952, 17096190, 18235936, 20515428, 22794920, 25644285, 26471520, 27353904, 34192380, 41030856, 45589840, 51288570, 54707808, 68384760, 82061712, 91179680, 102577140, 136769520, 164123424, 205154280, 273539040, 410308560, 820617120]

約数ペア:

[(1, 820617120), (2, 410308560), (3, 273539040), (4, 205154280), (5, 164123424), (6, 136769520), (8, 102577140), (9, 91179680), (10, 82061712), (12, 68384760), (15, 54707808), (16, 51288570), (18, 45589840), (20, 41030856), (24, 34192380), (30, 27353904), (31, 26471520), (32, 25644285), (36, 22794920), (40, 20515428), (45, 18235936), (48, 17096190), (60, 13676952), (62, 13235760), (72, 11397460), (80, 10257714), (90, 9117968), (93, 8823840), (96, 8548095), (120, 6838476), (124, 6617880), (144, 5698730), (155, 5294304), (160, 5128857), (180, 4558984), (186, 4411920), (240, 3419238), (248, 3308940), (279, 2941280), (288, 2849365), (310, 2647152), (360, 2279492), (372, 2205960), (465, 1764768), (480, 1709619), (496, 1654470), (558, 1470640), (593, 1383840), (620, 1323576), (720, 1139746), (744, 1102980), (930, 882384), (961, 853920), (992, 827235), (1116, 735320), (1186, 691920), (1240, 661788), (1395, 588256), (1440, 569873), (1488, 551490), (1779, 461280), (1860, 441192), (1922, 426960), (2232, 367660), (2372, 345960), (2480, 330894), (2790, 294128), (2883, 284640), (2965, 276768), (2976, 275745), (3558, 230640), (3720, 220596), (3844, 213480), (4464, 183830), (4744, 172980), (4805, 170784), (4960, 165447), (5337, 153760), (5580, 147064), (5766, 142320), (5930, 138384), (7116, 115320), (7440, 110298), (7688, 106740), (8649, 94880), (8895, 92256), (8928, 91915), (9488, 86490), (9610, 85392), (10674, 76880), (11160, 73532), (11532, 71160), (11860, 69192), (14232, 57660), (14415, 56928), (14880, 55149), (15376, 53370), (17298, 47440), (17790, 46128), (18383, 44640), (18976, 43245), (19220, 42696), (21348, 38440), (22320, 36766), (23064, 35580), (23720, 34596), (26685, 30752), (28464, 28830)]