81423510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1$

素因数の和:258

約数の個数: 128

約数和(自身を含む): 233570304

約数和(自身を除く): 152146794

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 71, 86, 105, 127, 129, 142, 210, 213, 215, 254, 258, 301, 355, 381, 426, 430, 497, 602, 635, 645, 710, 762, 889, 903, 994, 1065, 1270, 1290, 1491, 1505, 1778, 1806, 1905, 2130, 2485, 2667, 2982, 3010, 3053, 3810, 4445, 4515, 4970, 5334, 5461, 6106, 7455, 8890, 9017, 9030, 9159, 10922, 13335, 14910, 15265, 16383, 18034, 18318, 21371, 26670, 27051, 27305, 30530, 32766, 38227, 42742, 45085, 45795, 54102, 54610, 63119, 64113, 76454, 81915, 90170, 91590, 106855, 114681, 126238, 128226, 135255, 163830, 189357, 191135, 213710, 229362, 270510, 315595, 320565, 378714, 382270, 387731, 573405, 631190, 641130, 775462, 946785, 1146810, 1163193, 1893570, 1938655, 2326386, 2714117, 3877310, 5428234, 5815965, 8142351, 11631930, 13570585, 16284702, 27141170, 40711755, 81423510]

約数ペア:

[(1, 81423510), (2, 40711755), (3, 27141170), (5, 16284702), (6, 13570585), (7, 11631930), (10, 8142351), (14, 5815965), (15, 5428234), (21, 3877310), (30, 2714117), (35, 2326386), (42, 1938655), (43, 1893570), (70, 1163193), (71, 1146810), (86, 946785), (105, 775462), (127, 641130), (129, 631190), (142, 573405), (210, 387731), (213, 382270), (215, 378714), (254, 320565), (258, 315595), (301, 270510), (355, 229362), (381, 213710), (426, 191135), (430, 189357), (497, 163830), (602, 135255), (635, 128226), (645, 126238), (710, 114681), (762, 106855), (889, 91590), (903, 90170), (994, 81915), (1065, 76454), (1270, 64113), (1290, 63119), (1491, 54610), (1505, 54102), (1778, 45795), (1806, 45085), (1905, 42742), (2130, 38227), (2485, 32766), (2667, 30530), (2982, 27305), (3010, 27051), (3053, 26670), (3810, 21371), (4445, 18318), (4515, 18034), (4970, 16383), (5334, 15265), (5461, 14910), (6106, 13335), (7455, 10922), (8890, 9159), (9017, 9030)]