12449980

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5711}}^1$

素因数の和:5829

約数の個数: 24

約数和(自身を含む): 26389440

約数和(自身を除く): 13939460

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 5711, 11422, 22844, 28555, 57110, 114220, 622499, 1244998, 2489996, 3112495, 6224990, 12449980]

約数ペア:

[(1, 12449980), (2, 6224990), (4, 3112495), (5, 2489996), (10, 1244998), (20, 622499), (109, 114220), (218, 57110), (436, 28555), (545, 22844), (1090, 11422), (2180, 5711)]