19906900

素因数分解:

$2^2\times 5^2\times {\mathrm{13}}^1\times {\mathrm{15313}}^1$

素因数の和:15340

約数の個数: 36

約数和(自身を含む): 46523932

約数和(自身を除く): 26617032

約数列:

[1, 2, 4, 5, 10, 13, 20, 25, 26, 50, 52, 65, 100, 130, 260, 325, 650, 1300, 15313, 30626, 61252, 76565, 153130, 199069, 306260, 382825, 398138, 765650, 796276, 995345, 1531300, 1990690, 3981380, 4976725, 9953450, 19906900]

約数ペア:

[(1, 19906900), (2, 9953450), (4, 4976725), (5, 3981380), (10, 1990690), (13, 1531300), (20, 995345), (25, 796276), (26, 765650), (50, 398138), (52, 382825), (65, 306260), (100, 199069), (130, 153130), (260, 76565), (325, 61252), (650, 30626), (1300, 15313)]