77715260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{555109}}^1$

素因数の和:555125

約数の個数: 24

約数和(自身を含む): 186516960

約数和(自身を除く): 108801700

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 555109, 1110218, 2220436, 2775545, 3885763, 5551090, 7771526, 11102180, 15543052, 19428815, 38857630, 77715260]

約数ペア:

[(1, 77715260), (2, 38857630), (4, 19428815), (5, 15543052), (7, 11102180), (10, 7771526), (14, 5551090), (20, 3885763), (28, 2775545), (35, 2220436), (70, 1110218), (140, 555109)]