1024000

素因数分解:

$2^{13}\times 5^3$

素因数の和:41

約数の個数: 56

約数和(自身を含む): 2555748

約数和(自身を除く): 1531748

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 125, 128, 160, 200, 250, 256, 320, 400, 500, 512, 640, 800, 1000, 1024, 1280, 1600, 2000, 2048, 2560, 3200, 4000, 4096, 5120, 6400, 8000, 8192, 10240, 12800, 16000, 20480, 25600, 32000, 40960, 51200, 64000, 102400, 128000, 204800, 256000, 512000, 1024000]

約数ペア:

[(1, 1024000), (2, 512000), (4, 256000), (5, 204800), (8, 128000), (10, 102400), (16, 64000), (20, 51200), (25, 40960), (32, 32000), (40, 25600), (50, 20480), (64, 16000), (80, 12800), (100, 10240), (125, 8192), (128, 8000), (160, 6400), (200, 5120), (250, 4096), (256, 4000), (320, 3200), (400, 2560), (500, 2048), (512, 2000), (640, 1600), (800, 1280), (1000, 1024)]