38987480

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{139241}}^1$

素因数の和:139259

約数の個数: 32

約数和(自身を含む): 100254240

約数和(自身を除く): 61266760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 139241, 278482, 556964, 696205, 974687, 1113928, 1392410, 1949374, 2784820, 3898748, 4873435, 5569640, 7797496, 9746870, 19493740, 38987480]

約数ペア:

[(1, 38987480), (2, 19493740), (4, 9746870), (5, 7797496), (7, 5569640), (8, 4873435), (10, 3898748), (14, 2784820), (20, 1949374), (28, 1392410), (35, 1113928), (40, 974687), (56, 696205), (70, 556964), (140, 278482), (280, 139241)]