28005500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:807

約数の個数: 48

約数和(自身を含む): 62025600

約数和(自身を除く): 34020100

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 250, 316, 395, 500, 709, 790, 1418, 1580, 1975, 2836, 3545, 3950, 7090, 7900, 9875, 14180, 17725, 19750, 35450, 39500, 56011, 70900, 88625, 112022, 177250, 224044, 280055, 354500, 560110, 1120220, 1400275, 2800550, 5601100, 7001375, 14002750, 28005500]

約数ペア:

[(1, 28005500), (2, 14002750), (4, 7001375), (5, 5601100), (10, 2800550), (20, 1400275), (25, 1120220), (50, 560110), (79, 354500), (100, 280055), (125, 224044), (158, 177250), (250, 112022), (316, 88625), (395, 70900), (500, 56011), (709, 39500), (790, 35450), (1418, 19750), (1580, 17725), (1975, 14180), (2836, 9875), (3545, 7900), (3950, 7090)]