20194648520

素因数分解:

$2^3\times 5^1\times {\mathrm{504866213}}^1$

素因数の和:504866224

約数の個数: 16

約数和(自身を含む): 45437959260

約数和(自身を除く): 25243310740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 504866213, 1009732426, 2019464852, 2524331065, 4038929704, 5048662130, 10097324260, 20194648520]

約数ペア:

[(1, 20194648520), (2, 10097324260), (4, 5048662130), (5, 4038929704), (8, 2524331065), (10, 2019464852), (20, 1009732426), (40, 504866213)]