31344280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71237}}^1$

素因数の和:71259

約数の個数: 32

約数和(自身を含む): 76937040

約数和(自身を除く): 45592760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 71237, 142474, 284948, 356185, 569896, 712370, 783607, 1424740, 1567214, 2849480, 3134428, 3918035, 6268856, 7836070, 15672140, 31344280]

約数ペア:

[(1, 31344280), (2, 15672140), (4, 7836070), (5, 6268856), (8, 3918035), (10, 3134428), (11, 2849480), (20, 1567214), (22, 1424740), (40, 783607), (44, 712370), (55, 569896), (88, 356185), (110, 284948), (220, 142474), (440, 71237)]