17681920

素因数分解:

$2^9\times 5^1\times {\mathrm{6907}}^1$

素因数の和:6930

約数の個数: 40

約数和(自身を含む): 42401304

約数和(自身を除く): 24719384

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1280, 2560, 6907, 13814, 27628, 34535, 55256, 69070, 110512, 138140, 221024, 276280, 442048, 552560, 884096, 1105120, 1768192, 2210240, 3536384, 4420480, 8840960, 17681920]

約数ペア:

[(1, 17681920), (2, 8840960), (4, 4420480), (5, 3536384), (8, 2210240), (10, 1768192), (16, 1105120), (20, 884096), (32, 552560), (40, 442048), (64, 276280), (80, 221024), (128, 138140), (160, 110512), (256, 69070), (320, 55256), (512, 34535), (640, 27628), (1280, 13814), (2560, 6907)]