18442820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{7621}}^1$

素因数の和:7652

約数の個数: 36

約数和(自身を含む): 42576492

約数和(自身を除く): 24133672

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 7621, 15242, 30484, 38105, 76210, 83831, 152420, 167662, 335324, 419155, 838310, 922141, 1676620, 1844282, 3688564, 4610705, 9221410, 18442820]

約数ペア:

[(1, 18442820), (2, 9221410), (4, 4610705), (5, 3688564), (10, 1844282), (11, 1676620), (20, 922141), (22, 838310), (44, 419155), (55, 335324), (110, 167662), (121, 152420), (220, 83831), (242, 76210), (484, 38105), (605, 30484), (1210, 15242), (2420, 7621)]