64564780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{2341}}^1$

素因数の和:2554

約数の個数: 48

約数和(自身を含む): 155808576

約数和(自身を除く): 91243796

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2341, 2758, 3940, 4682, 5516, 6895, 9364, 11705, 13790, 16387, 23410, 27580, 32774, 46820, 65548, 81935, 163870, 327740, 461177, 922354, 1844708, 2305885, 3228239, 4611770, 6456478, 9223540, 12912956, 16141195, 32282390, 64564780]

約数ペア:

[(1, 64564780), (2, 32282390), (4, 16141195), (5, 12912956), (7, 9223540), (10, 6456478), (14, 4611770), (20, 3228239), (28, 2305885), (35, 1844708), (70, 922354), (140, 461177), (197, 327740), (394, 163870), (788, 81935), (985, 65548), (1379, 46820), (1970, 32774), (2341, 27580), (2758, 23410), (3940, 16387), (4682, 13790), (5516, 11705), (6895, 9364)]