180620

素因数分解:

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

素因数の和:841

約数の個数: 24

約数和(自身を含む): 414288

約数和(自身を除く): 233668

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 821, 1642, 3284, 4105, 8210, 9031, 16420, 18062, 36124, 45155, 90310, 180620]

約数ペア:

[(1, 180620), (2, 90310), (4, 45155), (5, 36124), (10, 18062), (11, 16420), (20, 9031), (22, 8210), (44, 4105), (55, 3284), (110, 1642), (220, 821)]