81878688

素因数分解:

$2^5\times 3^4\times {\mathrm{31}}^1\times {\mathrm{1019}}^1$

素因数の和:1072

約数の個数: 120

約数和(自身を含む): 248814720

約数和(自身を除く): 166936032

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 31, 32, 36, 48, 54, 62, 72, 81, 93, 96, 108, 124, 144, 162, 186, 216, 248, 279, 288, 324, 372, 432, 496, 558, 648, 744, 837, 864, 992, 1019, 1116, 1296, 1488, 1674, 2038, 2232, 2511, 2592, 2976, 3057, 3348, 4076, 4464, 5022, 6114, 6696, 8152, 8928, 9171, 10044, 12228, 13392, 16304, 18342, 20088, 24456, 26784, 27513, 31589, 32608, 36684, 40176, 48912, 55026, 63178, 73368, 80352, 82539, 94767, 97824, 110052, 126356, 146736, 165078, 189534, 220104, 252712, 284301, 293472, 330156, 379068, 440208, 505424, 568602, 660312, 758136, 852903, 880416, 1010848, 1137204, 1320624, 1516272, 1705806, 2274408, 2558709, 2641248, 3032544, 3411612, 4548816, 5117418, 6823224, 9097632, 10234836, 13646448, 20469672, 27292896, 40939344, 81878688]

約数ペア:

[(1, 81878688), (2, 40939344), (3, 27292896), (4, 20469672), (6, 13646448), (8, 10234836), (9, 9097632), (12, 6823224), (16, 5117418), (18, 4548816), (24, 3411612), (27, 3032544), (31, 2641248), (32, 2558709), (36, 2274408), (48, 1705806), (54, 1516272), (62, 1320624), (72, 1137204), (81, 1010848), (93, 880416), (96, 852903), (108, 758136), (124, 660312), (144, 568602), (162, 505424), (186, 440208), (216, 379068), (248, 330156), (279, 293472), (288, 284301), (324, 252712), (372, 220104), (432, 189534), (496, 165078), (558, 146736), (648, 126356), (744, 110052), (837, 97824), (864, 94767), (992, 82539), (1019, 80352), (1116, 73368), (1296, 63178), (1488, 55026), (1674, 48912), (2038, 40176), (2232, 36684), (2511, 32608), (2592, 31589), (2976, 27513), (3057, 26784), (3348, 24456), (4076, 20088), (4464, 18342), (5022, 16304), (6114, 13392), (6696, 12228), (8152, 10044), (8928, 9171)]