81718308

素因数分解:

$2^2\times 3^4\times 7^1\times {\mathrm{137}}^1\times {\mathrm{263}}^1$

素因数の和:423

約数の個数: 120

約数和(自身を含む): 246863232

約数和(自身を除く): 165144924

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 81, 84, 108, 126, 137, 162, 189, 252, 263, 274, 324, 378, 411, 526, 548, 567, 756, 789, 822, 959, 1052, 1134, 1233, 1578, 1644, 1841, 1918, 2268, 2367, 2466, 2877, 3156, 3682, 3699, 3836, 4734, 4932, 5523, 5754, 7101, 7364, 7398, 8631, 9468, 11046, 11097, 11508, 14202, 14796, 16569, 17262, 21303, 22092, 22194, 25893, 28404, 33138, 34524, 36031, 42606, 44388, 49707, 51786, 66276, 72062, 77679, 85212, 99414, 103572, 108093, 144124, 149121, 155358, 198828, 216186, 252217, 298242, 310716, 324279, 432372, 504434, 596484, 648558, 756651, 972837, 1008868, 1297116, 1513302, 1945674, 2269953, 2918511, 3026604, 3891348, 4539906, 5837022, 6809859, 9079812, 11674044, 13619718, 20429577, 27239436, 40859154, 81718308]

約数ペア:

[(1, 81718308), (2, 40859154), (3, 27239436), (4, 20429577), (6, 13619718), (7, 11674044), (9, 9079812), (12, 6809859), (14, 5837022), (18, 4539906), (21, 3891348), (27, 3026604), (28, 2918511), (36, 2269953), (42, 1945674), (54, 1513302), (63, 1297116), (81, 1008868), (84, 972837), (108, 756651), (126, 648558), (137, 596484), (162, 504434), (189, 432372), (252, 324279), (263, 310716), (274, 298242), (324, 252217), (378, 216186), (411, 198828), (526, 155358), (548, 149121), (567, 144124), (756, 108093), (789, 103572), (822, 99414), (959, 85212), (1052, 77679), (1134, 72062), (1233, 66276), (1578, 51786), (1644, 49707), (1841, 44388), (1918, 42606), (2268, 36031), (2367, 34524), (2466, 33138), (2877, 28404), (3156, 25893), (3682, 22194), (3699, 22092), (3836, 21303), (4734, 17262), (4932, 16569), (5523, 14796), (5754, 14202), (7101, 11508), (7364, 11097), (7398, 11046), (8631, 9468)]