315420

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{751}}^1$

素因数の和:770

約数の個数: 48

約数和(自身を含む): 1010688

約数和(自身を除く): 695268

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, 751, 1502, 2253, 3004, 3755, 4506, 5257, 7510, 9012, 10514, 11265, 15020, 15771, 21028, 22530, 26285, 31542, 45060, 52570, 63084, 78855, 105140, 157710, 315420]

約数ペア:

[(1, 315420), (2, 157710), (3, 105140), (4, 78855), (5, 63084), (6, 52570), (7, 45060), (10, 31542), (12, 26285), (14, 22530), (15, 21028), (20, 15771), (21, 15020), (28, 11265), (30, 10514), (35, 9012), (42, 7510), (60, 5257), (70, 4506), (84, 3755), (105, 3004), (140, 2253), (210, 1502), (420, 751)]