19402580

素因数分解:

$2^2\times 5^1\times {\mathrm{571}}^1\times {\mathrm{1699}}^1$

素因数の和:2279

約数の個数: 24

約数和(自身を含む): 40840800

約数和(自身を除く): 21438220

約数列:

[1, 2, 4, 5, 10, 20, 571, 1142, 1699, 2284, 2855, 3398, 5710, 6796, 8495, 11420, 16990, 33980, 970129, 1940258, 3880516, 4850645, 9701290, 19402580]

約数ペア:

[(1, 19402580), (2, 9701290), (4, 4850645), (5, 3880516), (10, 1940258), (20, 970129), (571, 33980), (1142, 16990), (1699, 11420), (2284, 8495), (2855, 6796), (3398, 5710)]