18995900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{2467}}^1$

素因数の和:2499

約数の個数: 72

約数和(自身を含む): 51413376

約数和(自身を除く): 32417476

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 25, 28, 35, 44, 50, 55, 70, 77, 100, 110, 140, 154, 175, 220, 275, 308, 350, 385, 550, 700, 770, 1100, 1540, 1925, 2467, 3850, 4934, 7700, 9868, 12335, 17269, 24670, 27137, 34538, 49340, 54274, 61675, 69076, 86345, 108548, 123350, 135685, 172690, 189959, 246700, 271370, 345380, 379918, 431725, 542740, 678425, 759836, 863450, 949795, 1356850, 1726900, 1899590, 2713700, 3799180, 4748975, 9497950, 18995900]

約数ペア:

[(1, 18995900), (2, 9497950), (4, 4748975), (5, 3799180), (7, 2713700), (10, 1899590), (11, 1726900), (14, 1356850), (20, 949795), (22, 863450), (25, 759836), (28, 678425), (35, 542740), (44, 431725), (50, 379918), (55, 345380), (70, 271370), (77, 246700), (100, 189959), (110, 172690), (140, 135685), (154, 123350), (175, 108548), (220, 86345), (275, 69076), (308, 61675), (350, 54274), (385, 49340), (550, 34538), (700, 27137), (770, 24670), (1100, 17269), (1540, 12335), (1925, 9868), (2467, 7700), (3850, 4934)]