15891960

素因数分解:

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

素因数の和:18940

約数の個数: 64

約数和(自身を含む): 54489600

約数和(自身を除く): 38597640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 18919, 37838, 56757, 75676, 94595, 113514, 132433, 151352, 189190, 227028, 264866, 283785, 378380, 397299, 454056, 529732, 567570, 662165, 756760, 794598, 1059464, 1135140, 1324330, 1589196, 1986495, 2270280, 2648660, 3178392, 3972990, 5297320, 7945980, 15891960]

約数ペア:

[(1, 15891960), (2, 7945980), (3, 5297320), (4, 3972990), (5, 3178392), (6, 2648660), (7, 2270280), (8, 1986495), (10, 1589196), (12, 1324330), (14, 1135140), (15, 1059464), (20, 794598), (21, 756760), (24, 662165), (28, 567570), (30, 529732), (35, 454056), (40, 397299), (42, 378380), (56, 283785), (60, 264866), (70, 227028), (84, 189190), (105, 151352), (120, 132433), (140, 113514), (168, 94595), (210, 75676), (280, 56757), (420, 37838), (840, 18919)]