81554068

素因数分解:

$2^2\times {\mathrm{37}}^2\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:412

約数の個数: 36

約数和(自身を含む): 149980572

約数和(自身を除く): 68426504

約数列:

[1, 2, 4, 37, 53, 74, 106, 148, 212, 281, 562, 1124, 1369, 1961, 2738, 3922, 5476, 7844, 10397, 14893, 20794, 29786, 41588, 59572, 72557, 145114, 290228, 384689, 551041, 769378, 1102082, 1538756, 2204164, 20388517, 40777034, 81554068]

約数ペア:

[(1, 81554068), (2, 40777034), (4, 20388517), (37, 2204164), (53, 1538756), (74, 1102082), (106, 769378), (148, 551041), (212, 384689), (281, 290228), (562, 145114), (1124, 72557), (1369, 59572), (1961, 41588), (2738, 29786), (3922, 20794), (5476, 14893), (7844, 10397)]