28603265

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{199}}^1$

素因数の和:329

約数の個数: 32

約数和(自身を含む): 38880000

約数和(自身を除く): 10276735

約数列:

[1, 5, 17, 19, 85, 89, 95, 199, 323, 445, 995, 1513, 1615, 1691, 3383, 3781, 7565, 8455, 16915, 17711, 18905, 28747, 64277, 88555, 143735, 301087, 321385, 336509, 1505435, 1682545, 5720653, 28603265]

約数ペア:

[(1, 28603265), (5, 5720653), (17, 1682545), (19, 1505435), (85, 336509), (89, 321385), (95, 301087), (199, 143735), (323, 88555), (445, 64277), (995, 28747), (1513, 18905), (1615, 17711), (1691, 16915), (3383, 8455), (3781, 7565)]