81027856

素因数分解:

$2^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:177

約数の個数: 160

約数和(自身を含む): 212486400

約数和(自身を除く): 131458544

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 19, 26, 28, 29, 38, 52, 56, 58, 76, 91, 101, 104, 112, 116, 133, 152, 182, 202, 203, 208, 232, 247, 266, 304, 364, 377, 404, 406, 464, 494, 532, 551, 707, 728, 754, 808, 812, 988, 1064, 1102, 1313, 1414, 1456, 1508, 1616, 1624, 1729, 1919, 1976, 2128, 2204, 2626, 2639, 2828, 2929, 3016, 3248, 3458, 3838, 3857, 3952, 4408, 5252, 5278, 5656, 5858, 6032, 6916, 7163, 7676, 7714, 8816, 9191, 10504, 10556, 11312, 11716, 13433, 13832, 14326, 15352, 15428, 18382, 20503, 21008, 21112, 23432, 24947, 26866, 27664, 28652, 30704, 30856, 36764, 38077, 41006, 42224, 46864, 49894, 50141, 53732, 55651, 57304, 61712, 73528, 76154, 82012, 99788, 100282, 107464, 111302, 114608, 147056, 152308, 164024, 174629, 199576, 200564, 214928, 222604, 266539, 304616, 328048, 349258, 389557, 399152, 401128, 445208, 533078, 609232, 698516, 723463, 779114, 802256, 890416, 1066156, 1397032, 1446926, 1558228, 2132312, 2794064, 2893852, 3116456, 4264624, 5064241, 5787704, 6232912, 10128482, 11575408, 20256964, 40513928, 81027856]

約数ペア:

[(1, 81027856), (2, 40513928), (4, 20256964), (7, 11575408), (8, 10128482), (13, 6232912), (14, 5787704), (16, 5064241), (19, 4264624), (26, 3116456), (28, 2893852), (29, 2794064), (38, 2132312), (52, 1558228), (56, 1446926), (58, 1397032), (76, 1066156), (91, 890416), (101, 802256), (104, 779114), (112, 723463), (116, 698516), (133, 609232), (152, 533078), (182, 445208), (202, 401128), (203, 399152), (208, 389557), (232, 349258), (247, 328048), (266, 304616), (304, 266539), (364, 222604), (377, 214928), (404, 200564), (406, 199576), (464, 174629), (494, 164024), (532, 152308), (551, 147056), (707, 114608), (728, 111302), (754, 107464), (808, 100282), (812, 99788), (988, 82012), (1064, 76154), (1102, 73528), (1313, 61712), (1414, 57304), (1456, 55651), (1508, 53732), (1616, 50141), (1624, 49894), (1729, 46864), (1919, 42224), (1976, 41006), (2128, 38077), (2204, 36764), (2626, 30856), (2639, 30704), (2828, 28652), (2929, 27664), (3016, 26866), (3248, 24947), (3458, 23432), (3838, 21112), (3857, 21008), (3952, 20503), (4408, 18382), (5252, 15428), (5278, 15352), (5656, 14326), (5858, 13832), (6032, 13433), (6916, 11716), (7163, 11312), (7676, 10556), (7714, 10504), (8816, 9191)]