20765288

素因数分解:

$2^3\times {\mathrm{31}}^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:178

約数の個数: 48

約数和(自身を含む): 41884740

約数和(自身を除く): 21119452

約数列:

[1, 2, 4, 8, 31, 37, 62, 73, 74, 124, 146, 148, 248, 292, 296, 584, 961, 1147, 1922, 2263, 2294, 2701, 3844, 4526, 4588, 5402, 7688, 9052, 9176, 10804, 18104, 21608, 35557, 70153, 71114, 83731, 140306, 142228, 167462, 280612, 284456, 334924, 561224, 669848, 2595661, 5191322, 10382644, 20765288]

約数ペア:

[(1, 20765288), (2, 10382644), (4, 5191322), (8, 2595661), (31, 669848), (37, 561224), (62, 334924), (73, 284456), (74, 280612), (124, 167462), (146, 142228), (148, 140306), (248, 83731), (292, 71114), (296, 70153), (584, 35557), (961, 21608), (1147, 18104), (1922, 10804), (2263, 9176), (2294, 9052), (2701, 7688), (3844, 5402), (4526, 4588)]