399045335

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{27779}}^1$

素因数の和:27827

約数の個数: 24

約数和(自身を含む): 549043920

約数和(自身を除く): 149998585

約数列:

[1, 5, 13, 17, 65, 85, 169, 221, 845, 1105, 2873, 14365, 27779, 138895, 361127, 472243, 1805635, 2361215, 4694651, 6139159, 23473255, 30695795, 79809067, 399045335]

約数ペア:

[(1, 399045335), (5, 79809067), (13, 30695795), (17, 23473255), (65, 6139159), (85, 4694651), (169, 2361215), (221, 1805635), (845, 472243), (1105, 361127), (2873, 138895), (14365, 27779)]