28905110495

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{211}}^1\times {\mathrm{35171}}^1$

素因数の和:35447

約数の個数: 32

約数和(自身を含む): 37580578560

約数和(自身を除く): 8675468065

約数列:

[1, 5, 19, 41, 95, 205, 211, 779, 1055, 3895, 4009, 8651, 20045, 35171, 43255, 164369, 175855, 668249, 821845, 1442011, 3341245, 7210055, 7421081, 27398209, 37105405, 136991045, 141000539, 304264321, 705002695, 1521321605, 5781022099, 28905110495]

約数ペア:

[(1, 28905110495), (5, 5781022099), (19, 1521321605), (41, 705002695), (95, 304264321), (205, 141000539), (211, 136991045), (779, 37105405), (1055, 27398209), (3895, 7421081), (4009, 7210055), (8651, 3341245), (20045, 1442011), (35171, 821845), (43255, 668249), (164369, 175855)]