19776620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4969}}^1$

素因数の和:5177

約数の個数: 24

約数和(自身を含む): 41748000

約数和(自身を除く): 21971380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4969, 9938, 19876, 24845, 49690, 99380, 988831, 1977662, 3955324, 4944155, 9888310, 19776620]

約数ペア:

[(1, 19776620), (2, 9888310), (4, 4944155), (5, 3955324), (10, 1977662), (20, 988831), (199, 99380), (398, 49690), (796, 24845), (995, 19876), (1990, 9938), (3980, 4969)]