6438500

素因数分解:

$2^2\times 5^3\times {\mathrm{79}}^1\times {\mathrm{163}}^1$

素因数の和:261

約数の個数: 48

約数和(自身を含む): 14327040

約数和(自身を除く): 7888540

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 79, 100, 125, 158, 163, 250, 316, 326, 395, 500, 652, 790, 815, 1580, 1630, 1975, 3260, 3950, 4075, 7900, 8150, 9875, 12877, 16300, 19750, 20375, 25754, 39500, 40750, 51508, 64385, 81500, 128770, 257540, 321925, 643850, 1287700, 1609625, 3219250, 6438500]

約数ペア:

[(1, 6438500), (2, 3219250), (4, 1609625), (5, 1287700), (10, 643850), (20, 321925), (25, 257540), (50, 128770), (79, 81500), (100, 64385), (125, 51508), (158, 40750), (163, 39500), (250, 25754), (316, 20375), (326, 19750), (395, 16300), (500, 12877), (652, 9875), (790, 8150), (815, 7900), (1580, 4075), (1630, 3950), (1975, 3260)]