20443300

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{2297}}^1$

素因数の和:2400

約数の個数: 36

約数和(自身を含む): 44879940

約数和(自身を除く): 24436640

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 2297, 4450, 4594, 8900, 9188, 11485, 22970, 45940, 57425, 114850, 204433, 229700, 408866, 817732, 1022165, 2044330, 4088660, 5110825, 10221650, 20443300]

約数ペア:

[(1, 20443300), (2, 10221650), (4, 5110825), (5, 4088660), (10, 2044330), (20, 1022165), (25, 817732), (50, 408866), (89, 229700), (100, 204433), (178, 114850), (356, 57425), (445, 45940), (890, 22970), (1780, 11485), (2225, 9188), (2297, 8900), (4450, 4594)]