20397872

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{5039}}^1$

素因数の和:5081

約数の個数: 40

約数和(自身を含む): 44997120

約数和(自身を除く): 24599248

約数列:

[1, 2, 4, 8, 11, 16, 22, 23, 44, 46, 88, 92, 176, 184, 253, 368, 506, 1012, 2024, 4048, 5039, 10078, 20156, 40312, 55429, 80624, 110858, 115897, 221716, 231794, 443432, 463588, 886864, 927176, 1274867, 1854352, 2549734, 5099468, 10198936, 20397872]

約数ペア:

[(1, 20397872), (2, 10198936), (4, 5099468), (8, 2549734), (11, 1854352), (16, 1274867), (22, 927176), (23, 886864), (44, 463588), (46, 443432), (88, 231794), (92, 221716), (176, 115897), (184, 110858), (253, 80624), (368, 55429), (506, 40312), (1012, 20156), (2024, 10078), (4048, 5039)]