1264635760

素因数分解:

$2^4\times 5^1\times {\mathrm{15807947}}^1$

素因数の和:15807960

約数の個数: 20

約数和(自身を含む): 2940278328

約数和(自身を除く): 1675642568

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15807947, 31615894, 63231788, 79039735, 126463576, 158079470, 252927152, 316158940, 632317880, 1264635760]

約数ペア:

[(1, 1264635760), (2, 632317880), (4, 316158940), (5, 252927152), (8, 158079470), (10, 126463576), (16, 79039735), (20, 63231788), (40, 31615894), (80, 15807947)]