820540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{5861}}^1$

素因数の和:5877

約数の個数: 24

約数和(自身を含む): 1969632

約数和(自身を除く): 1149092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 5861, 11722, 23444, 29305, 41027, 58610, 82054, 117220, 164108, 205135, 410270, 820540]

約数ペア:

[(1, 820540), (2, 410270), (4, 205135), (5, 164108), (7, 117220), (10, 82054), (14, 58610), (20, 41027), (28, 29305), (35, 23444), (70, 11722), (140, 5861)]