81700070

素因数分解:

$2^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{220811}}^1$

素因数の和:220855

約数の個数: 16

約数和(自身を含む): 151035408

約数和(自身を除く): 69335338

約数列:

[1, 2, 5, 10, 37, 74, 185, 370, 220811, 441622, 1104055, 2208110, 8170007, 16340014, 40850035, 81700070]

約数ペア:

[(1, 81700070), (2, 40850035), (5, 16340014), (10, 8170007), (37, 2208110), (74, 1104055), (185, 441622), (370, 220811)]