81431265

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{4733}}^1$

素因数の和:4809

約数の個数: 32

約数和(自身を含む): 138157056

約数和(自身を除く): 56725791

約数列:

[1, 3, 5, 15, 31, 37, 93, 111, 155, 185, 465, 555, 1147, 3441, 4733, 5735, 14199, 17205, 23665, 70995, 146723, 175121, 440169, 525363, 733615, 875605, 2200845, 2626815, 5428751, 16286253, 27143755, 81431265]

約数ペア:

[(1, 81431265), (3, 27143755), (5, 16286253), (15, 5428751), (31, 2626815), (37, 2200845), (93, 875605), (111, 733615), (155, 525363), (185, 440169), (465, 175121), (555, 146723), (1147, 70995), (3441, 23665), (4733, 17205), (5735, 14199)]