19211500

素因数分解:

$2^2\times 5^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{499}}^1$

素因数の和:536

約数の個数: 96

約数和(自身を含む): 52416000

約数和(自身を除く): 33204500

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 125, 140, 154, 175, 220, 250, 275, 308, 350, 385, 499, 500, 550, 700, 770, 875, 998, 1100, 1375, 1540, 1750, 1925, 1996, 2495, 2750, 3493, 3500, 3850, 4990, 5489, 5500, 6986, 7700, 9625, 9980, 10978, 12475, 13972, 17465, 19250, 21956, 24950, 27445, 34930, 38423, 38500, 49900, 54890, 62375, 69860, 76846, 87325, 109780, 124750, 137225, 153692, 174650, 192115, 249500, 274450, 349300, 384230, 436625, 548900, 686125, 768460, 873250, 960575, 1372250, 1746500, 1921150, 2744500, 3842300, 4802875, 9605750, 19211500]

約数ペア:

[(1, 19211500), (2, 9605750), (4, 4802875), (5, 3842300), (7, 2744500), (10, 1921150), (11, 1746500), (14, 1372250), (20, 960575), (22, 873250), (25, 768460), (28, 686125), (35, 548900), (44, 436625), (50, 384230), (55, 349300), (70, 274450), (77, 249500), (100, 192115), (110, 174650), (125, 153692), (140, 137225), (154, 124750), (175, 109780), (220, 87325), (250, 76846), (275, 69860), (308, 62375), (350, 54890), (385, 49900), (499, 38500), (500, 38423), (550, 34930), (700, 27445), (770, 24950), (875, 21956), (998, 19250), (1100, 17465), (1375, 13972), (1540, 12475), (1750, 10978), (1925, 9980), (1996, 9625), (2495, 7700), (2750, 6986), (3493, 5500), (3500, 5489), (3850, 4990)]