1681878220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^3\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{67}}^1$

素因数の和:173

約数の個数: 192

約数和(自身を含む): 4214633472

約数和(自身を除く): 2532755252

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 23, 41, 44, 46, 55, 67, 82, 92, 110, 115, 121, 134, 164, 205, 220, 230, 242, 253, 268, 335, 410, 451, 460, 484, 506, 605, 670, 737, 820, 902, 943, 1012, 1210, 1265, 1331, 1340, 1474, 1541, 1804, 1886, 2255, 2420, 2530, 2662, 2747, 2783, 2948, 3082, 3685, 3772, 4510, 4715, 4961, 5060, 5324, 5494, 5566, 6164, 6655, 7370, 7705, 8107, 9020, 9430, 9922, 10373, 10988, 11132, 13310, 13735, 13915, 14740, 15410, 16214, 16951, 18860, 19844, 20746, 24805, 26620, 27470, 27830, 30217, 30613, 30820, 32428, 33902, 40535, 41492, 49610, 51865, 54571, 54940, 55660, 60434, 61226, 63181, 67804, 81070, 84755, 89177, 99220, 103730, 109142, 114103, 120868, 122452, 126362, 151085, 153065, 162140, 169510, 178354, 186461, 207460, 218284, 228206, 252724, 272855, 302170, 306130, 315905, 332387, 339020, 356708, 372922, 445885, 456412, 545710, 570515, 604340, 612260, 631810, 664774, 694991, 745844, 891770, 932305, 1091420, 1141030, 1255133, 1263620, 1329548, 1389982, 1661935, 1783540, 1864610, 2051071, 2282060, 2510266, 2779964, 3323870, 3474955, 3656257, 3729220, 4102142, 5020532, 6275665, 6647740, 6949910, 7312514, 7644901, 8204284, 10255355, 12551330, 13899820, 14625028, 15289802, 18281285, 20510710, 25102660, 30579604, 36562570, 38224505, 41021420, 73125140, 76449010, 84093911, 152898020, 168187822, 336375644, 420469555, 840939110, 1681878220]

約数ペア:

[(1, 1681878220), (2, 840939110), (4, 420469555), (5, 336375644), (10, 168187822), (11, 152898020), (20, 84093911), (22, 76449010), (23, 73125140), (41, 41021420), (44, 38224505), (46, 36562570), (55, 30579604), (67, 25102660), (82, 20510710), (92, 18281285), (110, 15289802), (115, 14625028), (121, 13899820), (134, 12551330), (164, 10255355), (205, 8204284), (220, 7644901), (230, 7312514), (242, 6949910), (253, 6647740), (268, 6275665), (335, 5020532), (410, 4102142), (451, 3729220), (460, 3656257), (484, 3474955), (506, 3323870), (605, 2779964), (670, 2510266), (737, 2282060), (820, 2051071), (902, 1864610), (943, 1783540), (1012, 1661935), (1210, 1389982), (1265, 1329548), (1331, 1263620), (1340, 1255133), (1474, 1141030), (1541, 1091420), (1804, 932305), (1886, 891770), (2255, 745844), (2420, 694991), (2530, 664774), (2662, 631810), (2747, 612260), (2783, 604340), (2948, 570515), (3082, 545710), (3685, 456412), (3772, 445885), (4510, 372922), (4715, 356708), (4961, 339020), (5060, 332387), (5324, 315905), (5494, 306130), (5566, 302170), (6164, 272855), (6655, 252724), (7370, 228206), (7705, 218284), (8107, 207460), (9020, 186461), (9430, 178354), (9922, 169510), (10373, 162140), (10988, 153065), (11132, 151085), (13310, 126362), (13735, 122452), (13915, 120868), (14740, 114103), (15410, 109142), (16214, 103730), (16951, 99220), (18860, 89177), (19844, 84755), (20746, 81070), (24805, 67804), (26620, 63181), (27470, 61226), (27830, 60434), (30217, 55660), (30613, 54940), (30820, 54571), (32428, 51865), (33902, 49610), (40535, 41492)]