81070353

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{179}}^1$

素因数の和:291

約数の個数: 72

約数和(自身を含む): 149385600

約数和(自身を除く): 68315247

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 79, 91, 117, 147, 179, 237, 273, 441, 537, 553, 637, 711, 819, 1027, 1253, 1611, 1659, 1911, 2327, 3081, 3759, 3871, 4977, 5733, 6981, 7189, 8771, 9243, 11277, 11613, 14141, 16289, 20943, 21567, 26313, 34839, 42423, 48867, 50323, 64701, 78939, 98987, 114023, 127269, 146601, 150969, 183833, 296961, 342069, 452907, 551499, 692909, 890883, 1026207, 1286831, 1654497, 2078727, 3860493, 6236181, 9007817, 11581479, 27023451, 81070353]

約数ペア:

[(1, 81070353), (3, 27023451), (7, 11581479), (9, 9007817), (13, 6236181), (21, 3860493), (39, 2078727), (49, 1654497), (63, 1286831), (79, 1026207), (91, 890883), (117, 692909), (147, 551499), (179, 452907), (237, 342069), (273, 296961), (441, 183833), (537, 150969), (553, 146601), (637, 127269), (711, 114023), (819, 98987), (1027, 78939), (1253, 64701), (1611, 50323), (1659, 48867), (1911, 42423), (2327, 34839), (3081, 26313), (3759, 21567), (3871, 20943), (4977, 16289), (5733, 14141), (6981, 11613), (7189, 11277), (8771, 9243)]