16661380

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{3319}}^1$

素因数の和:3579

約数の個数: 24

約数和(自身を含む): 35138880

約数和(自身を除く): 18477500

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 3319, 5020, 6638, 13276, 16595, 33190, 66380, 833069, 1666138, 3332276, 4165345, 8330690, 16661380]

約数ペア:

[(1, 16661380), (2, 8330690), (4, 4165345), (5, 3332276), (10, 1666138), (20, 833069), (251, 66380), (502, 33190), (1004, 16595), (1255, 13276), (2510, 6638), (3319, 5020)]