291220147760

素因数分解:

$2^4\times 5^1\times {\mathrm{3640251847}}^1$

素因数の和:3640251860

約数の個数: 20

約数和(自身を含む): 677086843728

約数和(自身を除く): 385866695968

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3640251847, 7280503694, 14561007388, 18201259235, 29122014776, 36402518470, 58244029552, 72805036940, 145610073880, 291220147760]

約数ペア:

[(1, 291220147760), (2, 145610073880), (4, 72805036940), (5, 58244029552), (8, 36402518470), (10, 29122014776), (16, 18201259235), (20, 14561007388), (40, 7280503694), (80, 3640251847)]