64268140

素因数分解:

$2^2\times 5^1\times {\mathrm{1487}}^1\times {\mathrm{2161}}^1$

素因数の和:3657

約数の個数: 24

約数和(自身を含む): 135116352

約数和(自身を除く): 70848212

約数列:

[1, 2, 4, 5, 10, 20, 1487, 2161, 2974, 4322, 5948, 7435, 8644, 10805, 14870, 21610, 29740, 43220, 3213407, 6426814, 12853628, 16067035, 32134070, 64268140]

約数ペア:

[(1, 64268140), (2, 32134070), (4, 16067035), (5, 12853628), (10, 6426814), (20, 3213407), (1487, 43220), (2161, 29740), (2974, 21610), (4322, 14870), (5948, 10805), (7435, 8644)]