210009100

素因数分解:

$2^2\times 5^2\times 7^2\times {\mathrm{42859}}^1$

素因数の和:42887

約数の個数: 54

約数和(自身を含む): 530135340

約数和(自身を除く): 320126240

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 49, 50, 70, 98, 100, 140, 175, 196, 245, 350, 490, 700, 980, 1225, 2450, 4900, 42859, 85718, 171436, 214295, 300013, 428590, 600026, 857180, 1071475, 1200052, 1500065, 2100091, 2142950, 3000130, 4200182, 4285900, 6000260, 7500325, 8400364, 10500455, 15000650, 21000910, 30001300, 42001820, 52502275, 105004550, 210009100]

約数ペア:

[(1, 210009100), (2, 105004550), (4, 52502275), (5, 42001820), (7, 30001300), (10, 21000910), (14, 15000650), (20, 10500455), (25, 8400364), (28, 7500325), (35, 6000260), (49, 4285900), (50, 4200182), (70, 3000130), (98, 2142950), (100, 2100091), (140, 1500065), (175, 1200052), (196, 1071475), (245, 857180), (350, 600026), (490, 428590), (700, 300013), (980, 214295), (1225, 171436), (2450, 85718), (4900, 42859)]