81490696

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{139}}^1$

素因数の和:219

約数の個数: 96

約数和(自身を含む): 192024000

約数和(自身を除く): 110533304

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 76, 116, 133, 139, 152, 203, 232, 266, 278, 361, 406, 532, 551, 556, 722, 812, 973, 1064, 1102, 1112, 1444, 1624, 1946, 2204, 2527, 2641, 2888, 3857, 3892, 4031, 4408, 5054, 5282, 7714, 7784, 8062, 10108, 10469, 10564, 15428, 16124, 18487, 20216, 20938, 21128, 28217, 30856, 32248, 36974, 41876, 50179, 56434, 73283, 73948, 76589, 83752, 100358, 112868, 146566, 147896, 153178, 200716, 225736, 293132, 306356, 351253, 401432, 536123, 586264, 612712, 702506, 1072246, 1405012, 1455191, 2144492, 2810024, 2910382, 4288984, 5820764, 10186337, 11641528, 20372674, 40745348, 81490696]

約数ペア:

[(1, 81490696), (2, 40745348), (4, 20372674), (7, 11641528), (8, 10186337), (14, 5820764), (19, 4288984), (28, 2910382), (29, 2810024), (38, 2144492), (56, 1455191), (58, 1405012), (76, 1072246), (116, 702506), (133, 612712), (139, 586264), (152, 536123), (203, 401432), (232, 351253), (266, 306356), (278, 293132), (361, 225736), (406, 200716), (532, 153178), (551, 147896), (556, 146566), (722, 112868), (812, 100358), (973, 83752), (1064, 76589), (1102, 73948), (1112, 73283), (1444, 56434), (1624, 50179), (1946, 41876), (2204, 36974), (2527, 32248), (2641, 30856), (2888, 28217), (3857, 21128), (3892, 20938), (4031, 20216), (4408, 18487), (5054, 16124), (5282, 15428), (7714, 10564), (7784, 10469), (8062, 10108)]