81006940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{578621}}^1$

素因数の和:578637

約数の個数: 24

約数和(自身を含む): 194416992

約数和(自身を除く): 113410052

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 578621, 1157242, 2314484, 2893105, 4050347, 5786210, 8100694, 11572420, 16201388, 20251735, 40503470, 81006940]

約数ペア:

[(1, 81006940), (2, 40503470), (4, 20251735), (5, 16201388), (7, 11572420), (10, 8100694), (14, 5786210), (20, 4050347), (28, 2893105), (35, 2314484), (70, 1157242), (140, 578621)]