1280521906

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{2003}}^1\times {\mathrm{18803}}^1$

素因数の和:20825

約数の個数: 16

約数和(自身を含む): 2034893664

約数和(自身を除く): 754371758

約数列:

[1, 2, 17, 34, 2003, 4006, 18803, 34051, 37606, 68102, 319651, 639302, 37662409, 75324818, 640260953, 1280521906]

約数ペア:

[(1, 1280521906), (2, 640260953), (17, 75324818), (34, 37662409), (2003, 639302), (4006, 319651), (18803, 68102), (34051, 37606)]