205781520

素因数分解:

$2^4\times 3^1\times 5^1\times 7^1\times {\mathrm{122489}}^1$

素因数の和:122512

約数の個数: 80

約数和(自身を含む): 729060480

約数和(自身を除く): 523278960

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 35, 40, 42, 48, 56, 60, 70, 80, 84, 105, 112, 120, 140, 168, 210, 240, 280, 336, 420, 560, 840, 1680, 122489, 244978, 367467, 489956, 612445, 734934, 857423, 979912, 1224890, 1469868, 1714846, 1837335, 1959824, 2449780, 2572269, 2939736, 3429692, 3674670, 4287115, 4899560, 5144538, 5879472, 6859384, 7349340, 8574230, 9799120, 10289076, 12861345, 13718768, 14698680, 17148460, 20578152, 25722690, 29397360, 34296920, 41156304, 51445380, 68593840, 102890760, 205781520]

約数ペア:

[(1, 205781520), (2, 102890760), (3, 68593840), (4, 51445380), (5, 41156304), (6, 34296920), (7, 29397360), (8, 25722690), (10, 20578152), (12, 17148460), (14, 14698680), (15, 13718768), (16, 12861345), (20, 10289076), (21, 9799120), (24, 8574230), (28, 7349340), (30, 6859384), (35, 5879472), (40, 5144538), (42, 4899560), (48, 4287115), (56, 3674670), (60, 3429692), (70, 2939736), (80, 2572269), (84, 2449780), (105, 1959824), (112, 1837335), (120, 1714846), (140, 1469868), (168, 1224890), (210, 979912), (240, 857423), (280, 734934), (336, 612445), (420, 489956), (560, 367467), (840, 244978), (1680, 122489)]