20751920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{37057}}^1$

素因数の和:37077

約数の個数: 40

約数和(自身を含む): 55142304

約数和(自身を除く): 34390384

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 37057, 74114, 148228, 185285, 259399, 296456, 370570, 518798, 592912, 741140, 1037596, 1296995, 1482280, 2075192, 2593990, 2964560, 4150384, 5187980, 10375960, 20751920]

約数ペア:

[(1, 20751920), (2, 10375960), (4, 5187980), (5, 4150384), (7, 2964560), (8, 2593990), (10, 2075192), (14, 1482280), (16, 1296995), (20, 1037596), (28, 741140), (35, 592912), (40, 518798), (56, 370570), (70, 296456), (80, 259399), (112, 185285), (140, 148228), (280, 74114), (560, 37057)]