38931440

素因数分解:

$2^4\times 5^1\times {\mathrm{486643}}^1$

素因数の和:486656

約数の個数: 20

約数和(自身を含む): 90515784

約数和(自身を除く): 51584344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 486643, 973286, 1946572, 2433215, 3893144, 4866430, 7786288, 9732860, 19465720, 38931440]

約数ペア:

[(1, 38931440), (2, 19465720), (4, 9732860), (5, 7786288), (8, 4866430), (10, 3893144), (16, 2433215), (20, 1946572), (40, 973286), (80, 486643)]