20758700

素因数分解:

$2^2\times 5^2\times {\mathrm{17}}^1\times {\mathrm{12211}}^1$

素因数の和:12242

約数の個数: 36

約数和(自身を含む): 47700072

約数和(自身を除く): 26941372

約数列:

[1, 2, 4, 5, 10, 17, 20, 25, 34, 50, 68, 85, 100, 170, 340, 425, 850, 1700, 12211, 24422, 48844, 61055, 122110, 207587, 244220, 305275, 415174, 610550, 830348, 1037935, 1221100, 2075870, 4151740, 5189675, 10379350, 20758700]

約数ペア:

[(1, 20758700), (2, 10379350), (4, 5189675), (5, 4151740), (10, 2075870), (17, 1221100), (20, 1037935), (25, 830348), (34, 610550), (50, 415174), (68, 305275), (85, 244220), (100, 207587), (170, 122110), (340, 61055), (425, 48844), (850, 24422), (1700, 12211)]