18884075

素因数分解:

$5^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^2$

素因数の和:168

約数の個数: 36

約数和(自身を含む): 28145520

約数和(自身を除く): 9261445

約数列:

[1, 5, 7, 25, 29, 35, 61, 145, 175, 203, 305, 427, 725, 1015, 1525, 1769, 2135, 3721, 5075, 8845, 10675, 12383, 18605, 26047, 44225, 61915, 93025, 107909, 130235, 309575, 539545, 651175, 755363, 2697725, 3776815, 18884075]

約数ペア:

[(1, 18884075), (5, 3776815), (7, 2697725), (25, 755363), (29, 651175), (35, 539545), (61, 309575), (145, 130235), (175, 107909), (203, 93025), (305, 61915), (427, 44225), (725, 26047), (1015, 18605), (1525, 12383), (1769, 10675), (2135, 8845), (3721, 5075)]