20652820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{33311}}^1$

素因数の和:33351

約数の個数: 24

約数和(自身を含む): 44771328

約数和(自身を除く): 24118508

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 33311, 66622, 133244, 166555, 333110, 666220, 1032641, 2065282, 4130564, 5163205, 10326410, 20652820]

約数ペア:

[(1, 20652820), (2, 10326410), (4, 5163205), (5, 4130564), (10, 2065282), (20, 1032641), (31, 666220), (62, 333110), (124, 166555), (155, 133244), (310, 66622), (620, 33311)]