20079780

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{47809}}^1$

素因数の和:47828

約数の個数: 48

約数和(自身を含む): 64256640

約数和(自身を除く): 44176860

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 47809, 95618, 143427, 191236, 239045, 286854, 334663, 478090, 573708, 669326, 717135, 956180, 1003989, 1338652, 1434270, 1673315, 2007978, 2868540, 3346630, 4015956, 5019945, 6693260, 10039890, 20079780]

約数ペア:

[(1, 20079780), (2, 10039890), (3, 6693260), (4, 5019945), (5, 4015956), (6, 3346630), (7, 2868540), (10, 2007978), (12, 1673315), (14, 1434270), (15, 1338652), (20, 1003989), (21, 956180), (28, 717135), (30, 669326), (35, 573708), (42, 478090), (60, 334663), (70, 286854), (84, 239045), (105, 191236), (140, 143427), (210, 95618), (420, 47809)]