291286105520

素因数分解:

$2^4\times 5^1\times {\mathrm{3641076319}}^1$

素因数の和:3641076332

約数の個数: 20

約数和(自身を含む): 677240195520

約数和(自身を除く): 385954090000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3641076319, 7282152638, 14564305276, 18205381595, 29128610552, 36410763190, 58257221104, 72821526380, 145643052760, 291286105520]

約数ペア:

[(1, 291286105520), (2, 145643052760), (4, 72821526380), (5, 58257221104), (8, 36410763190), (10, 29128610552), (16, 18205381595), (20, 14564305276), (40, 7282152638), (80, 3641076319)]