40375088

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{389}}^1\times {\mathrm{499}}^1$

素因数の和:909

約数の個数: 40

約数和(自身を含む): 84630000

約数和(自身を除く): 44254912

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 389, 499, 778, 998, 1556, 1996, 3112, 3992, 5057, 6224, 6487, 7984, 10114, 12974, 20228, 25948, 40456, 51896, 80912, 103792, 194111, 388222, 776444, 1552888, 2523443, 3105776, 5046886, 10093772, 20187544, 40375088]

約数ペア:

[(1, 40375088), (2, 20187544), (4, 10093772), (8, 5046886), (13, 3105776), (16, 2523443), (26, 1552888), (52, 776444), (104, 388222), (208, 194111), (389, 103792), (499, 80912), (778, 51896), (998, 40456), (1556, 25948), (1996, 20228), (3112, 12974), (3992, 10114), (5057, 7984), (6224, 6487)]