31026820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{12821}}^1$

素因数の和:12852

約数の個数: 36

約数和(自身を含む): 71623692

約数和(自身を除く): 40596872

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 12821, 25642, 51284, 64105, 128210, 141031, 256420, 282062, 564124, 705155, 1410310, 1551341, 2820620, 3102682, 6205364, 7756705, 15513410, 31026820]

約数ペア:

[(1, 31026820), (2, 15513410), (4, 7756705), (5, 6205364), (10, 3102682), (11, 2820620), (20, 1551341), (22, 1410310), (44, 705155), (55, 564124), (110, 282062), (121, 256420), (220, 141031), (242, 128210), (484, 64105), (605, 51284), (1210, 25642), (2420, 12821)]