19726340

素因数分解:

$2^2\times 5^1\times {\mathrm{613}}^1\times {\mathrm{1609}}^1$

素因数の和:2231

約数の個数: 24

約数和(自身を含む): 41518680

約数和(自身を除く): 21792340

約数列:

[1, 2, 4, 5, 10, 20, 613, 1226, 1609, 2452, 3065, 3218, 6130, 6436, 8045, 12260, 16090, 32180, 986317, 1972634, 3945268, 4931585, 9863170, 19726340]

約数ペア:

[(1, 19726340), (2, 9863170), (4, 4931585), (5, 3945268), (10, 1972634), (20, 986317), (613, 32180), (1226, 16090), (1609, 12260), (2452, 8045), (3065, 6436), (3218, 6130)]