28897375

素因数分解:

$5^3\times {\mathrm{13}}^1\times {\mathrm{17783}}^1$

素因数の和:17811

約数の個数: 16

約数和(自身を含む): 38840256

約数和(自身を除く): 9942881

約数列:

[1, 5, 13, 25, 65, 125, 325, 1625, 17783, 88915, 231179, 444575, 1155895, 2222875, 5779475, 28897375]

約数ペア:

[(1, 28897375), (5, 5779475), (13, 2222875), (25, 1155895), (65, 444575), (125, 231179), (325, 88915), (1625, 17783)]