38667020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{1987}}^1$

素因数の和:2142

約数の個数: 48

約数和(自身を含む): 93515520

約数和(自身を除く): 54848500

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 1987, 2780, 3892, 3974, 4865, 7948, 9730, 9935, 13909, 19460, 19870, 27818, 39740, 55636, 69545, 139090, 276193, 278180, 552386, 1104772, 1380965, 1933351, 2761930, 3866702, 5523860, 7733404, 9666755, 19333510, 38667020]

約数ペア:

[(1, 38667020), (2, 19333510), (4, 9666755), (5, 7733404), (7, 5523860), (10, 3866702), (14, 2761930), (20, 1933351), (28, 1380965), (35, 1104772), (70, 552386), (139, 278180), (140, 276193), (278, 139090), (556, 69545), (695, 55636), (973, 39740), (1390, 27818), (1946, 19870), (1987, 19460), (2780, 13909), (3892, 9935), (3974, 9730), (4865, 7948)]