1999672825

素因数分解:

$5^2\times {\mathrm{31}}^2\times {\mathrm{83233}}^1$

素因数の和:83305

約数の個数: 18

約数和(自身を含む): 2562192222

約数和(自身を除く): 562519397

約数列:

[1, 5, 25, 31, 155, 775, 961, 4805, 24025, 83233, 416165, 2080825, 2580223, 12901115, 64505575, 79986913, 399934565, 1999672825]

約数ペア:

[(1, 1999672825), (5, 399934565), (25, 79986913), (31, 64505575), (155, 12901115), (775, 2580223), (961, 2080825), (4805, 416165), (24025, 83233)]