643670065

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{329243}}^1$

素因数の和:329288

約数の個数: 16

約数和(自身を含む): 853400448

約数和(自身を除く): 209730383

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 329243, 1646215, 5597131, 7572589, 27985655, 37862945, 128734013, 643670065]

約数ペア:

[(1, 643670065), (5, 128734013), (17, 37862945), (23, 27985655), (85, 7572589), (115, 5597131), (391, 1646215), (1955, 329243)]