19647740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{3793}}^1$

素因数の和:3846

約数の個数: 48

約数和(自身を含む): 48441792

約数和(自身を除く): 28794052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 3793, 5180, 7586, 15172, 18965, 26551, 37930, 53102, 75860, 106204, 132755, 140341, 265510, 280682, 531020, 561364, 701705, 982387, 1403410, 1964774, 2806820, 3929548, 4911935, 9823870, 19647740]

約数ペア:

[(1, 19647740), (2, 9823870), (4, 4911935), (5, 3929548), (7, 2806820), (10, 1964774), (14, 1403410), (20, 982387), (28, 701705), (35, 561364), (37, 531020), (70, 280682), (74, 265510), (140, 140341), (148, 132755), (185, 106204), (259, 75860), (370, 53102), (518, 37930), (740, 26551), (1036, 18965), (1295, 15172), (2590, 7586), (3793, 5180)]