28288625

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{277}}^1$

素因数の和:354

約数の個数: 32

約数和(自身を含む): 38163840

約数和(自身を除く): 9875215

約数列:

[1, 5, 19, 25, 43, 95, 125, 215, 277, 475, 817, 1075, 1385, 2375, 4085, 5263, 5375, 6925, 11911, 20425, 26315, 34625, 59555, 102125, 131575, 226309, 297775, 657875, 1131545, 1488875, 5657725, 28288625]

約数ペア:

[(1, 28288625), (5, 5657725), (19, 1488875), (25, 1131545), (43, 657875), (95, 297775), (125, 226309), (215, 131575), (277, 102125), (475, 59555), (817, 34625), (1075, 26315), (1385, 20425), (2375, 11911), (4085, 6925), (5263, 5375)]