1425920

素因数分解:

$2^9\times 5^1\times {\mathrm{557}}^1$

素因数の和:580

約数の個数: 40

約数和(自身を含む): 3425004

約数和(自身を除く): 1999084

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 557, 640, 1114, 1280, 2228, 2560, 2785, 4456, 5570, 8912, 11140, 17824, 22280, 35648, 44560, 71296, 89120, 142592, 178240, 285184, 356480, 712960, 1425920]

約数ペア:

[(1, 1425920), (2, 712960), (4, 356480), (5, 285184), (8, 178240), (10, 142592), (16, 89120), (20, 71296), (32, 44560), (40, 35648), (64, 22280), (80, 17824), (128, 11140), (160, 8912), (256, 5570), (320, 4456), (512, 2785), (557, 2560), (640, 2228), (1114, 1280)]