20306510

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2087}}^1$

素因数の和:2240

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 21787570

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 139, 278, 695, 973, 1390, 1946, 2087, 4174, 4865, 9730, 10435, 14609, 20870, 29218, 73045, 146090, 290093, 580186, 1450465, 2030651, 2900930, 4061302, 10153255, 20306510]

約数ペア:

[(1, 20306510), (2, 10153255), (5, 4061302), (7, 2900930), (10, 2030651), (14, 1450465), (35, 580186), (70, 290093), (139, 146090), (278, 73045), (695, 29218), (973, 20870), (1390, 14609), (1946, 10435), (2087, 9730), (4174, 4865)]