28240625

素因数分解:

$5^5\times 7^1\times {\mathrm{1291}}^1$

素因数の和:1323

約数の個数: 24

約数和(自身を含む): 40372416

約数和(自身を除く): 12131791

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 1291, 3125, 4375, 6455, 9037, 21875, 32275, 45185, 161375, 225925, 806875, 1129625, 4034375, 5648125, 28240625]

約数ペア:

[(1, 28240625), (5, 5648125), (7, 4034375), (25, 1129625), (35, 806875), (125, 225925), (175, 161375), (625, 45185), (875, 32275), (1291, 21875), (3125, 9037), (4375, 6455)]