28801025

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{9521}}^1$

素因数の和:9553

約数の個数: 18

約数和(自身を含む): 39259206

約数和(自身を除く): 10458181

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 9521, 47605, 104731, 238025, 523655, 1152041, 2618275, 5760205, 28801025]

約数ペア:

[(1, 28801025), (5, 5760205), (11, 2618275), (25, 1152041), (55, 523655), (121, 238025), (275, 104731), (605, 47605), (3025, 9521)]