18575620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{479}}^1$

素因数の和:772

約数の個数: 48

約数和(自身を含む): 44835840

約数和(自身を除く): 26260220

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 479, 554, 958, 1108, 1385, 1916, 1939, 2395, 2770, 3353, 3878, 4790, 5540, 6706, 7756, 9580, 9695, 13412, 16765, 19390, 33530, 38780, 67060, 132683, 265366, 530732, 663415, 928781, 1326830, 1857562, 2653660, 3715124, 4643905, 9287810, 18575620]

約数ペア:

[(1, 18575620), (2, 9287810), (4, 4643905), (5, 3715124), (7, 2653660), (10, 1857562), (14, 1326830), (20, 928781), (28, 663415), (35, 530732), (70, 265366), (140, 132683), (277, 67060), (479, 38780), (554, 33530), (958, 19390), (1108, 16765), (1385, 13412), (1916, 9695), (1939, 9580), (2395, 7756), (2770, 6706), (3353, 5540), (3878, 4790)]