64017040

素因数分解:

$2^4\times 5^1\times {\mathrm{800213}}^1$

素因数の和:800226

約数の個数: 20

約数和(自身を含む): 148839804

約数和(自身を除く): 84822764

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 800213, 1600426, 3200852, 4001065, 6401704, 8002130, 12803408, 16004260, 32008520, 64017040]

約数ペア:

[(1, 64017040), (2, 32008520), (4, 16004260), (5, 12803408), (8, 8002130), (10, 6401704), (16, 4001065), (20, 3200852), (40, 1600426), (80, 800213)]