79866620

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{28729}}^1$

素因数の和:28877

約数の個数: 24

約数和(自身を含む): 168932400

約数和(自身を除く): 89065780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 28729, 57458, 114916, 143645, 287290, 574580, 3993331, 7986662, 15973324, 19966655, 39933310, 79866620]

約数ペア:

[(1, 79866620), (2, 39933310), (4, 19966655), (5, 15973324), (10, 7986662), (20, 3993331), (139, 574580), (278, 287290), (556, 143645), (695, 114916), (1390, 57458), (2780, 28729)]