39459440

素因数分解:

$2^4\times 5^1\times {\mathrm{493243}}^1$

素因数の和:493256

約数の個数: 20

約数和(自身を含む): 91743384

約数和(自身を除く): 52283944

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 493243, 986486, 1972972, 2466215, 3945944, 4932430, 7891888, 9864860, 19729720, 39459440]

約数ペア:

[(1, 39459440), (2, 19729720), (4, 9864860), (5, 7891888), (8, 4932430), (10, 3945944), (16, 2466215), (20, 1972972), (40, 986486), (80, 493243)]