161807120

素因数分解:

$2^4\times 5^1\times {\mathrm{139}}^1\times {\mathrm{14551}}^1$

素因数の和:14703

約数の個数: 40

約数和(自身を含む): 378934080

約数和(自身を除く): 217126960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 139, 278, 556, 695, 1112, 1390, 2224, 2780, 5560, 11120, 14551, 29102, 58204, 72755, 116408, 145510, 232816, 291020, 582040, 1164080, 2022589, 4045178, 8090356, 10112945, 16180712, 20225890, 32361424, 40451780, 80903560, 161807120]

約数ペア:

[(1, 161807120), (2, 80903560), (4, 40451780), (5, 32361424), (8, 20225890), (10, 16180712), (16, 10112945), (20, 8090356), (40, 4045178), (80, 2022589), (139, 1164080), (278, 582040), (556, 291020), (695, 232816), (1112, 145510), (1390, 116408), (2224, 72755), (2780, 58204), (5560, 29102), (11120, 14551)]