81271008

素因数分解:

$2^5\times 3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{443}}^1$

素因数の和:486

約数の個数: 216

約数和(自身を含む): 290181528

約数和(自身を除く): 208910520

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 32, 36, 39, 42, 48, 49, 52, 56, 63, 72, 78, 84, 91, 96, 98, 104, 112, 117, 126, 144, 147, 156, 168, 182, 196, 208, 224, 234, 252, 273, 288, 294, 312, 336, 364, 392, 416, 441, 443, 468, 504, 546, 588, 624, 637, 672, 728, 784, 819, 882, 886, 936, 1008, 1092, 1176, 1248, 1274, 1329, 1456, 1568, 1638, 1764, 1772, 1872, 1911, 2016, 2184, 2352, 2548, 2658, 2912, 3101, 3276, 3528, 3544, 3744, 3822, 3987, 4368, 4704, 5096, 5316, 5733, 5759, 6202, 6552, 7056, 7088, 7644, 7974, 8736, 9303, 10192, 10632, 11466, 11518, 12404, 13104, 14112, 14176, 15288, 15948, 17277, 18606, 20384, 21264, 21707, 22932, 23036, 24808, 26208, 27909, 30576, 31896, 34554, 37212, 40313, 42528, 43414, 45864, 46072, 49616, 51831, 55818, 61152, 63792, 65121, 69108, 74424, 80626, 86828, 91728, 92144, 99232, 103662, 111636, 120939, 127584, 130242, 138216, 148848, 161252, 173656, 183456, 184288, 195363, 207324, 223272, 241878, 260484, 276432, 282191, 297696, 322504, 347312, 362817, 390726, 414648, 446544, 483756, 520968, 552864, 564382, 645008, 694624, 725634, 781452, 829296, 846573, 893088, 967512, 1041936, 1128764, 1290016, 1451268, 1562904, 1658592, 1693146, 1935024, 2083872, 2257528, 2539719, 2902536, 3125808, 3386292, 3870048, 4515056, 5079438, 5805072, 6251616, 6772584, 9030112, 10158876, 11610144, 13545168, 20317752, 27090336, 40635504, 81271008]

約数ペア:

[(1, 81271008), (2, 40635504), (3, 27090336), (4, 20317752), (6, 13545168), (7, 11610144), (8, 10158876), (9, 9030112), (12, 6772584), (13, 6251616), (14, 5805072), (16, 5079438), (18, 4515056), (21, 3870048), (24, 3386292), (26, 3125808), (28, 2902536), (32, 2539719), (36, 2257528), (39, 2083872), (42, 1935024), (48, 1693146), (49, 1658592), (52, 1562904), (56, 1451268), (63, 1290016), (72, 1128764), (78, 1041936), (84, 967512), (91, 893088), (96, 846573), (98, 829296), (104, 781452), (112, 725634), (117, 694624), (126, 645008), (144, 564382), (147, 552864), (156, 520968), (168, 483756), (182, 446544), (196, 414648), (208, 390726), (224, 362817), (234, 347312), (252, 322504), (273, 297696), (288, 282191), (294, 276432), (312, 260484), (336, 241878), (364, 223272), (392, 207324), (416, 195363), (441, 184288), (443, 183456), (468, 173656), (504, 161252), (546, 148848), (588, 138216), (624, 130242), (637, 127584), (672, 120939), (728, 111636), (784, 103662), (819, 99232), (882, 92144), (886, 91728), (936, 86828), (1008, 80626), (1092, 74424), (1176, 69108), (1248, 65121), (1274, 63792), (1329, 61152), (1456, 55818), (1568, 51831), (1638, 49616), (1764, 46072), (1772, 45864), (1872, 43414), (1911, 42528), (2016, 40313), (2184, 37212), (2352, 34554), (2548, 31896), (2658, 30576), (2912, 27909), (3101, 26208), (3276, 24808), (3528, 23036), (3544, 22932), (3744, 21707), (3822, 21264), (3987, 20384), (4368, 18606), (4704, 17277), (5096, 15948), (5316, 15288), (5733, 14176), (5759, 14112), (6202, 13104), (6552, 12404), (7056, 11518), (7088, 11466), (7644, 10632), (7974, 10192), (8736, 9303)]