51216025

素因数分解:

$5^2\times 7^2\times {\mathrm{41809}}^1$

素因数の和:41833

約数の個数: 18

約数和(自身を含む): 73878270

約数和(自身を除く): 22662245

約数列:

[1, 5, 7, 25, 35, 49, 175, 245, 1225, 41809, 209045, 292663, 1045225, 1463315, 2048641, 7316575, 10243205, 51216025]

約数ペア:

[(1, 51216025), (5, 10243205), (7, 7316575), (25, 2048641), (35, 1463315), (49, 1045225), (175, 292663), (245, 209045), (1225, 41809)]