81742851

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{89}}^1$

素因数の和:170

約数の個数: 80

約数和(自身を含む): 141134400

約数和(自身を除く): 59391549

約数列:

[1, 3, 9, 17, 23, 27, 29, 51, 69, 81, 87, 89, 153, 207, 261, 267, 391, 459, 493, 621, 667, 783, 801, 1173, 1377, 1479, 1513, 1863, 2001, 2047, 2349, 2403, 2581, 3519, 4437, 4539, 6003, 6141, 7209, 7743, 10557, 11339, 13311, 13617, 18009, 18423, 23229, 31671, 34017, 34799, 39933, 40851, 43877, 54027, 55269, 59363, 69687, 102051, 104397, 122553, 131631, 165807, 178089, 209061, 306153, 313191, 394893, 534267, 918459, 939573, 1009171, 1184679, 1602801, 2818719, 3027513, 3554037, 4808403, 9082539, 27247617, 81742851]

約数ペア:

[(1, 81742851), (3, 27247617), (9, 9082539), (17, 4808403), (23, 3554037), (27, 3027513), (29, 2818719), (51, 1602801), (69, 1184679), (81, 1009171), (87, 939573), (89, 918459), (153, 534267), (207, 394893), (261, 313191), (267, 306153), (391, 209061), (459, 178089), (493, 165807), (621, 131631), (667, 122553), (783, 104397), (801, 102051), (1173, 69687), (1377, 59363), (1479, 55269), (1513, 54027), (1863, 43877), (2001, 40851), (2047, 39933), (2349, 34799), (2403, 34017), (2581, 31671), (3519, 23229), (4437, 18423), (4539, 18009), (6003, 13617), (6141, 13311), (7209, 11339), (7743, 10557)]