39987475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{13219}}^1$

素因数の和:13251

約数の個数: 18

約数和(自身を含む): 54506060

約数和(自身を除く): 14518585

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 13219, 66095, 145409, 330475, 727045, 1599499, 3635225, 7997495, 39987475]

約数ペア:

[(1, 39987475), (5, 7997495), (11, 3635225), (25, 1599499), (55, 727045), (121, 330475), (275, 145409), (605, 66095), (3025, 13219)]