20178880015

素因数分解:

$5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{1613}}^1\times {\mathrm{2609}}^1$

素因数の和:4371

約数の個数: 32

約数和(自身を含む): 27903864960

約数和(自身を除く): 7724984945

約数列:

[1, 5, 7, 35, 137, 685, 959, 1613, 2609, 4795, 8065, 11291, 13045, 18263, 56455, 91315, 220981, 357433, 1104905, 1546867, 1787165, 2502031, 4208317, 7734335, 12510155, 21041585, 29458219, 147291095, 576539429, 2882697145, 4035776003, 20178880015]

約数ペア:

[(1, 20178880015), (5, 4035776003), (7, 2882697145), (35, 576539429), (137, 147291095), (685, 29458219), (959, 21041585), (1613, 12510155), (2609, 7734335), (4795, 4208317), (8065, 2502031), (11291, 1787165), (13045, 1546867), (18263, 1104905), (56455, 357433), (91315, 220981)]