80637520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53051}}^1$

素因数の和:53083

約数の個数: 40

約数和(自身を含む): 197353440

約数和(自身を除く): 116715920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 53051, 106102, 212204, 265255, 424408, 530510, 848816, 1007969, 1061020, 2015938, 2122040, 4031876, 4244080, 5039845, 8063752, 10079690, 16127504, 20159380, 40318760, 80637520]

約数ペア:

[(1, 80637520), (2, 40318760), (4, 20159380), (5, 16127504), (8, 10079690), (10, 8063752), (16, 5039845), (19, 4244080), (20, 4031876), (38, 2122040), (40, 2015938), (76, 1061020), (80, 1007969), (95, 848816), (152, 530510), (190, 424408), (304, 265255), (380, 212204), (760, 106102), (1520, 53051)]