19794180

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47129}}^1$

素因数の和:47148

約数の個数: 48

約数和(自身を含む): 63342720

約数和(自身を除く): 43548540

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47129, 94258, 141387, 188516, 235645, 282774, 329903, 471290, 565548, 659806, 706935, 942580, 989709, 1319612, 1413870, 1649515, 1979418, 2827740, 3299030, 3958836, 4948545, 6598060, 9897090, 19794180]

約数ペア:

[(1, 19794180), (2, 9897090), (3, 6598060), (4, 4948545), (5, 3958836), (6, 3299030), (7, 2827740), (10, 1979418), (12, 1649515), (14, 1413870), (15, 1319612), (20, 989709), (21, 942580), (28, 706935), (30, 659806), (35, 565548), (42, 471290), (60, 329903), (70, 282774), (84, 235645), (105, 188516), (140, 141387), (210, 94258), (420, 47129)]