19639900

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{28057}}^1$

素因数の和:28078

約数の個数: 36

約数和(自身を含む): 48708688

約数和(自身を除く): 29068788

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 50, 70, 100, 140, 175, 350, 700, 28057, 56114, 112228, 140285, 196399, 280570, 392798, 561140, 701425, 785596, 981995, 1402850, 1963990, 2805700, 3927980, 4909975, 9819950, 19639900]

約数ペア:

[(1, 19639900), (2, 9819950), (4, 4909975), (5, 3927980), (7, 2805700), (10, 1963990), (14, 1402850), (20, 981995), (25, 785596), (28, 701425), (35, 561140), (50, 392798), (70, 280570), (100, 196399), (140, 140285), (175, 112228), (350, 56114), (700, 28057)]