28805560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{102877}}^1$

素因数の和:102895

約数の個数: 32

約数和(自身を含む): 74072160

約数和(自身を除く): 45266600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 102877, 205754, 411508, 514385, 720139, 823016, 1028770, 1440278, 2057540, 2880556, 3600695, 4115080, 5761112, 7201390, 14402780, 28805560]

約数ペア:

[(1, 28805560), (2, 14402780), (4, 7201390), (5, 5761112), (7, 4115080), (8, 3600695), (10, 2880556), (14, 2057540), (20, 1440278), (28, 1028770), (35, 823016), (40, 720139), (56, 514385), (70, 411508), (140, 205754), (280, 102877)]