289040065

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{79}}^1\times {\mathrm{2027}}^1$

素因数の和:2149

約数の個数: 24

約数和(自身を含む): 370880640

約数和(自身を除く): 81840575

約数列:

[1, 5, 19, 79, 95, 361, 395, 1501, 1805, 2027, 7505, 10135, 28519, 38513, 142595, 160133, 192565, 731747, 800665, 3042527, 3658735, 15212635, 57808013, 289040065]

約数ペア:

[(1, 289040065), (5, 57808013), (19, 15212635), (79, 3658735), (95, 3042527), (361, 800665), (395, 731747), (1501, 192565), (1805, 160133), (2027, 142595), (7505, 38513), (10135, 28519)]