4280005

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1171}}^1$

素因数の和:1236

約数の個数: 16

約数和(自身を含む): 5569344

約数和(自身を除く): 1289339

約数列:

[1, 5, 17, 43, 85, 215, 731, 1171, 3655, 5855, 19907, 50353, 99535, 251765, 856001, 4280005]

約数ペア:

[(1, 4280005), (5, 856001), (17, 251765), (43, 99535), (85, 50353), (215, 19907), (731, 5855), (1171, 3655)]