20187544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:907

約数の個数: 32

約数和(自身を含む): 40950000

約数和(自身を除く): 20762456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 389, 499, 778, 998, 1556, 1996, 3112, 3992, 5057, 6487, 10114, 12974, 20228, 25948, 40456, 51896, 194111, 388222, 776444, 1552888, 2523443, 5046886, 10093772, 20187544]

約数ペア:

[(1, 20187544), (2, 10093772), (4, 5046886), (8, 2523443), (13, 1552888), (26, 776444), (52, 388222), (104, 194111), (389, 51896), (499, 40456), (778, 25948), (998, 20228), (1556, 12974), (1996, 10114), (3112, 6487), (3992, 5057)]