77974960

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{139241}}^1$

素因数の和:139261

約数の個数: 40

約数和(自身を含む): 207192096

約数和(自身を除く): 129217136

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 139241, 278482, 556964, 696205, 974687, 1113928, 1392410, 1949374, 2227856, 2784820, 3898748, 4873435, 5569640, 7797496, 9746870, 11139280, 15594992, 19493740, 38987480, 77974960]

約数ペア:

[(1, 77974960), (2, 38987480), (4, 19493740), (5, 15594992), (7, 11139280), (8, 9746870), (10, 7797496), (14, 5569640), (16, 4873435), (20, 3898748), (28, 2784820), (35, 2227856), (40, 1949374), (56, 1392410), (70, 1113928), (80, 974687), (112, 696205), (140, 556964), (280, 278482), (560, 139241)]