155578780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{197}}^1\times {\mathrm{5641}}^1$

素因数の和:5854

約数の個数: 48

約数和(自身を含む): 375350976

約数和(自身を除く): 219772196

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 197, 394, 788, 985, 1379, 1970, 2758, 3940, 5516, 5641, 6895, 11282, 13790, 22564, 27580, 28205, 39487, 56410, 78974, 112820, 157948, 197435, 394870, 789740, 1111277, 2222554, 4445108, 5556385, 7778939, 11112770, 15557878, 22225540, 31115756, 38894695, 77789390, 155578780]

約数ペア:

[(1, 155578780), (2, 77789390), (4, 38894695), (5, 31115756), (7, 22225540), (10, 15557878), (14, 11112770), (20, 7778939), (28, 5556385), (35, 4445108), (70, 2222554), (140, 1111277), (197, 789740), (394, 394870), (788, 197435), (985, 157948), (1379, 112820), (1970, 78974), (2758, 56410), (3940, 39487), (5516, 28205), (5641, 27580), (6895, 22564), (11282, 13790)]