78577040

素因数分解:

$2^4\times 5^1\times {\mathrm{982213}}^1$

素因数の和:982226

約数の個数: 20

約数和(自身を含む): 182691804

約数和(自身を除く): 104114764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 982213, 1964426, 3928852, 4911065, 7857704, 9822130, 15715408, 19644260, 39288520, 78577040]

約数ペア:

[(1, 78577040), (2, 39288520), (4, 19644260), (5, 15715408), (8, 9822130), (10, 7857704), (16, 4911065), (20, 3928852), (40, 1964426), (80, 982213)]