12757880

素因数分解:

$2^3\times 5^1\times {\mathrm{313}}^1\times {\mathrm{1019}}^1$

素因数の和:1343

約数の個数: 32

約数和(自身を含む): 28825200

約数和(自身を除く): 16067320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 313, 626, 1019, 1252, 1565, 2038, 2504, 3130, 4076, 5095, 6260, 8152, 10190, 12520, 20380, 40760, 318947, 637894, 1275788, 1594735, 2551576, 3189470, 6378940, 12757880]

約数ペア:

[(1, 12757880), (2, 6378940), (4, 3189470), (5, 2551576), (8, 1594735), (10, 1275788), (20, 637894), (40, 318947), (313, 40760), (626, 20380), (1019, 12520), (1252, 10190), (1565, 8152), (2038, 6260), (2504, 5095), (3130, 4076)]