20158864

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{2437}}^1$

素因数の和:2503

約数の個数: 40

約数和(自身を含む): 43532928

約数和(自身を除く): 23374064

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 47, 88, 94, 176, 188, 376, 517, 752, 1034, 2068, 2437, 4136, 4874, 8272, 9748, 19496, 26807, 38992, 53614, 107228, 114539, 214456, 229078, 428912, 458156, 916312, 1259929, 1832624, 2519858, 5039716, 10079432, 20158864]

約数ペア:

[(1, 20158864), (2, 10079432), (4, 5039716), (8, 2519858), (11, 1832624), (16, 1259929), (22, 916312), (44, 458156), (47, 428912), (88, 229078), (94, 214456), (176, 114539), (188, 107228), (376, 53614), (517, 38992), (752, 26807), (1034, 19496), (2068, 9748), (2437, 8272), (4136, 4874)]