28890625

素因数分解:

$5^6\times {\mathrm{43}}^2$

素因数の和:116

約数の個数: 21

約数和(自身を含む): 36972183

約数和(自身を除く): 8081558

約数列:

[1, 5, 25, 43, 125, 215, 625, 1075, 1849, 3125, 5375, 9245, 15625, 26875, 46225, 134375, 231125, 671875, 1155625, 5778125, 28890625]

約数ペア:

[(1, 28890625), (5, 5778125), (25, 1155625), (43, 671875), (125, 231125), (215, 134375), (625, 46225), (1075, 26875), (1849, 15625), (3125, 9245)]