9720025

素因数分解:

$5^2\times 7^1\times {\mathrm{67}}^1\times {\mathrm{829}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 13997120

約数和(自身を除く): 4277095

約数列:

[1, 5, 7, 25, 35, 67, 175, 335, 469, 829, 1675, 2345, 4145, 5803, 11725, 20725, 29015, 55543, 145075, 277715, 388801, 1388575, 1944005, 9720025]

約数ペア:

[(1, 9720025), (5, 1944005), (7, 1388575), (25, 388801), (35, 277715), (67, 145075), (175, 55543), (335, 29015), (469, 20725), (829, 11725), (1675, 5803), (2345, 4145)]