20485960

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46559}}^1$

素因数の和:46581

約数の個数: 32

約数和(自身を含む): 50284800

約数和(自身を除く): 29798840

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46559, 93118, 186236, 232795, 372472, 465590, 512149, 931180, 1024298, 1862360, 2048596, 2560745, 4097192, 5121490, 10242980, 20485960]

約数ペア:

[(1, 20485960), (2, 10242980), (4, 5121490), (5, 4097192), (8, 2560745), (10, 2048596), (11, 1862360), (20, 1024298), (22, 931180), (40, 512149), (44, 465590), (55, 372472), (88, 232795), (110, 186236), (220, 93118), (440, 46559)]