30541980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{72719}}^1$

素因数の和:72738

約数の個数: 48

約数和(自身を含む): 97735680

約数和(自身を除く): 67193700

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, 72719, 145438, 218157, 290876, 363595, 436314, 509033, 727190, 872628, 1018066, 1090785, 1454380, 1527099, 2036132, 2181570, 2545165, 3054198, 4363140, 5090330, 6108396, 7635495, 10180660, 15270990, 30541980]

約数ペア:

[(1, 30541980), (2, 15270990), (3, 10180660), (4, 7635495), (5, 6108396), (6, 5090330), (7, 4363140), (10, 3054198), (12, 2545165), (14, 2181570), (15, 2036132), (20, 1527099), (21, 1454380), (28, 1090785), (30, 1018066), (35, 872628), (42, 727190), (60, 509033), (70, 436314), (84, 363595), (105, 290876), (140, 218157), (210, 145438), (420, 72719)]