20199892545

素因数分解:

$3^2\times 5^1\times 7^3\times {\mathrm{1308707}}^1$

素因数の和:1308739

約数の個数: 48

約数和(自身を含む): 40831689600

約数和(自身を除く): 20631797055

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 343, 441, 735, 1029, 1715, 2205, 3087, 5145, 15435, 1308707, 3926121, 6543535, 9160949, 11778363, 19630605, 27482847, 45804745, 58891815, 64126643, 82448541, 137414235, 192379929, 320633215, 412242705, 448886501, 577139787, 961899645, 1346659503, 2244432505, 2885698935, 4039978509, 6733297515, 20199892545]

約数ペア:

[(1, 20199892545), (3, 6733297515), (5, 4039978509), (7, 2885698935), (9, 2244432505), (15, 1346659503), (21, 961899645), (35, 577139787), (45, 448886501), (49, 412242705), (63, 320633215), (105, 192379929), (147, 137414235), (245, 82448541), (315, 64126643), (343, 58891815), (441, 45804745), (735, 27482847), (1029, 19630605), (1715, 11778363), (2205, 9160949), (3087, 6543535), (5145, 3926121), (15435, 1308707)]