165970960

素因数分解:

$2^4\times 5^1\times {\mathrm{1291}}^1\times {\mathrm{1607}}^1$

素因数の和:2911

約数の個数: 40

約数和(自身を含む): 386421696

約数和(自身を除く): 220450736

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1291, 1607, 2582, 3214, 5164, 6428, 6455, 8035, 10328, 12856, 12910, 16070, 20656, 25712, 25820, 32140, 51640, 64280, 103280, 128560, 2074637, 4149274, 8298548, 10373185, 16597096, 20746370, 33194192, 41492740, 82985480, 165970960]

約数ペア:

[(1, 165970960), (2, 82985480), (4, 41492740), (5, 33194192), (8, 20746370), (10, 16597096), (16, 10373185), (20, 8298548), (40, 4149274), (80, 2074637), (1291, 128560), (1607, 103280), (2582, 64280), (3214, 51640), (5164, 32140), (6428, 25820), (6455, 25712), (8035, 20656), (10328, 16070), (12856, 12910)]