28824005

素因数分解:

$5^1\times 7^8$

素因数の和:61

約数の個数: 18

約数和(自身を含む): 40353606

約数和(自身を除く): 11529601

約数列:

[1, 5, 7, 35, 49, 245, 343, 1715, 2401, 12005, 16807, 84035, 117649, 588245, 823543, 4117715, 5764801, 28824005]

約数ペア:

[(1, 28824005), (5, 5764801), (7, 4117715), (35, 823543), (49, 588245), (245, 117649), (343, 84035), (1715, 16807), (2401, 12005)]