861100

素因数分解:

$2^2\times 5^2\times {\mathrm{79}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 36

約数和(自身を含む): 1909600

約数和(自身を除く): 1048500

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 109, 158, 218, 316, 395, 436, 545, 790, 1090, 1580, 1975, 2180, 2725, 3950, 5450, 7900, 8611, 10900, 17222, 34444, 43055, 86110, 172220, 215275, 430550, 861100]

約数ペア:

[(1, 861100), (2, 430550), (4, 215275), (5, 172220), (10, 86110), (20, 43055), (25, 34444), (50, 17222), (79, 10900), (100, 8611), (109, 7900), (158, 5450), (218, 3950), (316, 2725), (395, 2180), (436, 1975), (545, 1580), (790, 1090)]