1986820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{821}}^1$

素因数の和:852

約数の個数: 36

約数和(自身を含む): 4591692

約数和(自身を除く): 2604872

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 821, 1210, 1642, 2420, 3284, 4105, 8210, 9031, 16420, 18062, 36124, 45155, 90310, 99341, 180620, 198682, 397364, 496705, 993410, 1986820]

約数ペア:

[(1, 1986820), (2, 993410), (4, 496705), (5, 397364), (10, 198682), (11, 180620), (20, 99341), (22, 90310), (44, 45155), (55, 36124), (110, 18062), (121, 16420), (220, 9031), (242, 8210), (484, 4105), (605, 3284), (821, 2420), (1210, 1642)]