28145540

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82781}}^1$

素因数の和:82807

約数の個数: 24

約数和(自身を含む): 62583192

約数和(自身を除く): 34437652

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 82781, 165562, 331124, 413905, 827810, 1407277, 1655620, 2814554, 5629108, 7036385, 14072770, 28145540]

約数ペア:

[(1, 28145540), (2, 14072770), (4, 7036385), (5, 5629108), (10, 2814554), (17, 1655620), (20, 1407277), (34, 827810), (68, 413905), (85, 331124), (170, 165562), (340, 82781)]