20501810

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{109}}^1\times {\mathrm{2687}}^1$

素因数の和:2810

約数の個数: 32

約数和(自身を含む): 42577920

約数和(自身を除く): 22076110

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 109, 218, 545, 763, 1090, 1526, 2687, 3815, 5374, 7630, 13435, 18809, 26870, 37618, 94045, 188090, 292883, 585766, 1464415, 2050181, 2928830, 4100362, 10250905, 20501810]

約数ペア:

[(1, 20501810), (2, 10250905), (5, 4100362), (7, 2928830), (10, 2050181), (14, 1464415), (35, 585766), (70, 292883), (109, 188090), (218, 94045), (545, 37618), (763, 26870), (1090, 18809), (1526, 13435), (2687, 7630), (3815, 5374)]