30121980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{71719}}^1$

素因数の和:71738

約数の個数: 48

約数和(自身を含む): 96391680

約数和(自身を除く): 66269700

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, 71719, 143438, 215157, 286876, 358595, 430314, 502033, 717190, 860628, 1004066, 1075785, 1434380, 1506099, 2008132, 2151570, 2510165, 3012198, 4303140, 5020330, 6024396, 7530495, 10040660, 15060990, 30121980]

約数ペア:

[(1, 30121980), (2, 15060990), (3, 10040660), (4, 7530495), (5, 6024396), (6, 5020330), (7, 4303140), (10, 3012198), (12, 2510165), (14, 2151570), (15, 2008132), (20, 1506099), (21, 1434380), (28, 1075785), (30, 1004066), (35, 860628), (42, 717190), (60, 502033), (70, 430314), (84, 358595), (105, 286876), (140, 215157), (210, 143438), (420, 71719)]