81974410

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{157}}^1\times {\mathrm{7459}}^1$

素因数の和:7630

約数の個数: 32

約数和(自身を含む): 169729920

約数和(自身を除く): 87755510

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 157, 314, 785, 1099, 1570, 2198, 5495, 7459, 10990, 14918, 37295, 52213, 74590, 104426, 261065, 522130, 1171063, 2342126, 5855315, 8197441, 11710630, 16394882, 40987205, 81974410]

約数ペア:

[(1, 81974410), (2, 40987205), (5, 16394882), (7, 11710630), (10, 8197441), (14, 5855315), (35, 2342126), (70, 1171063), (157, 522130), (314, 261065), (785, 104426), (1099, 74590), (1570, 52213), (2198, 37295), (5495, 14918), (7459, 10990)]