20438568

素因数分解:

$2^3\times 3^4\times {\mathrm{31541}}^1$

素因数の和:31559

約数の個数: 40

約数和(自身を含む): 57248730

約数和(自身を除く): 36810162

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 27, 36, 54, 72, 81, 108, 162, 216, 324, 648, 31541, 63082, 94623, 126164, 189246, 252328, 283869, 378492, 567738, 756984, 851607, 1135476, 1703214, 2270952, 2554821, 3406428, 5109642, 6812856, 10219284, 20438568]

約数ペア:

[(1, 20438568), (2, 10219284), (3, 6812856), (4, 5109642), (6, 3406428), (8, 2554821), (9, 2270952), (12, 1703214), (18, 1135476), (24, 851607), (27, 756984), (36, 567738), (54, 378492), (72, 283869), (81, 252328), (108, 189246), (162, 126164), (216, 94623), (324, 63082), (648, 31541)]