12145225

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{41}}^2$

素因数の和:126

約数の個数: 27

約数和(自身を含む): 16397791

約数和(自身を除く): 4252566

約数列:

[1, 5, 17, 25, 41, 85, 205, 289, 425, 697, 1025, 1445, 1681, 3485, 7225, 8405, 11849, 17425, 28577, 42025, 59245, 142885, 296225, 485809, 714425, 2429045, 12145225]

約数ペア:

[(1, 12145225), (5, 2429045), (17, 714425), (25, 485809), (41, 296225), (85, 142885), (205, 59245), (289, 42025), (425, 28577), (697, 17425), (1025, 11849), (1445, 8405), (1681, 7225)]