81152225

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{42157}}^1$

素因数の和:42185

約数の個数: 24

約数和(自身を含む): 125462208

約数和(自身を除く): 44309983

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 42157, 210785, 295099, 463727, 1053925, 1475495, 2318635, 3246089, 7377475, 11593175, 16230445, 81152225]

約数ペア:

[(1, 81152225), (5, 16230445), (7, 11593175), (11, 7377475), (25, 3246089), (35, 2318635), (55, 1475495), (77, 1053925), (175, 463727), (275, 295099), (385, 210785), (1925, 42157)]