30685640

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5519}}^1$

素因数の和:5669

約数の個数: 32

約数和(自身を含む): 69552000

約数和(自身を除く): 38866360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5519, 5560, 11038, 22076, 27595, 44152, 55190, 110380, 220760, 767141, 1534282, 3068564, 3835705, 6137128, 7671410, 15342820, 30685640]

約数ペア:

[(1, 30685640), (2, 15342820), (4, 7671410), (5, 6137128), (8, 3835705), (10, 3068564), (20, 1534282), (40, 767141), (139, 220760), (278, 110380), (556, 55190), (695, 44152), (1112, 27595), (1390, 22076), (2780, 11038), (5519, 5560)]