40059620

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28211}}^1$

素因数の和:28291

約数の個数: 24

約数和(自身を含む): 85313088

約数和(自身を除く): 45253468

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 28211, 56422, 112844, 141055, 282110, 564220, 2002981, 4005962, 8011924, 10014905, 20029810, 40059620]

約数ペア:

[(1, 40059620), (2, 20029810), (4, 10014905), (5, 8011924), (10, 4005962), (20, 2002981), (71, 564220), (142, 282110), (284, 141055), (355, 112844), (710, 56422), (1420, 28211)]