1285368440

素因数分解:

$2^3\times 5^1\times {\mathrm{3559}}^1\times {\mathrm{9029}}^1$

素因数の和:12599

約数の個数: 32

約数和(自身を含む): 2893212000

約数和(自身を除く): 1607843560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3559, 7118, 9029, 14236, 17795, 18058, 28472, 35590, 36116, 45145, 71180, 72232, 90290, 142360, 180580, 361160, 32134211, 64268422, 128536844, 160671055, 257073688, 321342110, 642684220, 1285368440]

約数ペア:

[(1, 1285368440), (2, 642684220), (4, 321342110), (5, 257073688), (8, 160671055), (10, 128536844), (20, 64268422), (40, 32134211), (3559, 361160), (7118, 180580), (9029, 142360), (14236, 90290), (17795, 72232), (18058, 71180), (28472, 45145), (35590, 36116)]