61371280

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5519}}^1$

素因数の和:5671

約数の個数: 40

約数和(自身を含む): 143740800

約数和(自身を除く): 82369520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5519, 5560, 11038, 11120, 22076, 27595, 44152, 55190, 88304, 110380, 220760, 441520, 767141, 1534282, 3068564, 3835705, 6137128, 7671410, 12274256, 15342820, 30685640, 61371280]

約数ペア:

[(1, 61371280), (2, 30685640), (4, 15342820), (5, 12274256), (8, 7671410), (10, 6137128), (16, 3835705), (20, 3068564), (40, 1534282), (80, 767141), (139, 441520), (278, 220760), (556, 110380), (695, 88304), (1112, 55190), (1390, 44152), (2224, 27595), (2780, 22076), (5519, 11120), (5560, 11038)]