87111740

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{256211}}^1$

素因数の和:256237

約数の個数: 24

約数和(自身を含む): 193696272

約数和(自身を除く): 106584532

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 256211, 512422, 1024844, 1281055, 2562110, 4355587, 5124220, 8711174, 17422348, 21777935, 43555870, 87111740]

約数ペア:

[(1, 87111740), (2, 43555870), (4, 21777935), (5, 17422348), (10, 8711174), (17, 5124220), (20, 4355587), (34, 2562110), (68, 1281055), (85, 1024844), (170, 512422), (340, 256211)]