402820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1831}}^1$

素因数の和:1851

約数の個数: 24

約数和(自身を含む): 923328

約数和(自身を除く): 520508

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1831, 3662, 7324, 9155, 18310, 20141, 36620, 40282, 80564, 100705, 201410, 402820]

約数ペア:

[(1, 402820), (2, 201410), (4, 100705), (5, 80564), (10, 40282), (11, 36620), (20, 20141), (22, 18310), (44, 9155), (55, 7324), (110, 3662), (220, 1831)]