81225060

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{193393}}^1$

素因数の和:193412

約数の個数: 48

約数和(自身を含む): 259921536

約数和(自身を除く): 178696476

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, 193393, 386786, 580179, 773572, 966965, 1160358, 1353751, 1933930, 2320716, 2707502, 2900895, 3867860, 4061253, 5415004, 5801790, 6768755, 8122506, 11603580, 13537510, 16245012, 20306265, 27075020, 40612530, 81225060]

約数ペア:

[(1, 81225060), (2, 40612530), (3, 27075020), (4, 20306265), (5, 16245012), (6, 13537510), (7, 11603580), (10, 8122506), (12, 6768755), (14, 5801790), (15, 5415004), (20, 4061253), (21, 3867860), (28, 2900895), (30, 2707502), (35, 2320716), (42, 1933930), (60, 1353751), (70, 1160358), (84, 966965), (105, 773572), (140, 580179), (210, 386786), (420, 193393)]