51510620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2647}}^1$

素因数の和:2802

約数の個数: 48

約数和(自身を含む): 124561920

約数和(自身を除く): 73051300

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 139, 140, 278, 556, 695, 973, 1390, 1946, 2647, 2780, 3892, 4865, 5294, 9730, 10588, 13235, 18529, 19460, 26470, 37058, 52940, 74116, 92645, 185290, 367933, 370580, 735866, 1471732, 1839665, 2575531, 3679330, 5151062, 7358660, 10302124, 12877655, 25755310, 51510620]

約数ペア:

[(1, 51510620), (2, 25755310), (4, 12877655), (5, 10302124), (7, 7358660), (10, 5151062), (14, 3679330), (20, 2575531), (28, 1839665), (35, 1471732), (70, 735866), (139, 370580), (140, 367933), (278, 185290), (556, 92645), (695, 74116), (973, 52940), (1390, 37058), (1946, 26470), (2647, 19460), (2780, 18529), (3892, 13235), (4865, 10588), (5294, 9730)]