7945980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18919}}^1$

素因数の和:18938

約数の個数: 48

約数和(自身を含む): 25428480

約数和(自身を除く): 17482500

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, 18919, 37838, 56757, 75676, 94595, 113514, 132433, 189190, 227028, 264866, 283785, 378380, 397299, 529732, 567570, 662165, 794598, 1135140, 1324330, 1589196, 1986495, 2648660, 3972990, 7945980]

約数ペア:

[(1, 7945980), (2, 3972990), (3, 2648660), (4, 1986495), (5, 1589196), (6, 1324330), (7, 1135140), (10, 794598), (12, 662165), (14, 567570), (15, 529732), (20, 397299), (21, 378380), (28, 283785), (30, 264866), (35, 227028), (42, 189190), (60, 132433), (70, 113514), (84, 94595), (105, 75676), (140, 56757), (210, 37838), (420, 18919)]