21961600

素因数分解:

$2^7\times 5^2\times {\mathrm{6863}}^1$

素因数の和:6887

約数の個数: 48

約数和(自身を含む): 54259920

約数和(自身を除く): 32298320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 6863, 13726, 27452, 34315, 54904, 68630, 109808, 137260, 171575, 219616, 274520, 343150, 439232, 549040, 686300, 878464, 1098080, 1372600, 2196160, 2745200, 4392320, 5490400, 10980800, 21961600]

約数ペア:

[(1, 21961600), (2, 10980800), (4, 5490400), (5, 4392320), (8, 2745200), (10, 2196160), (16, 1372600), (20, 1098080), (25, 878464), (32, 686300), (40, 549040), (50, 439232), (64, 343150), (80, 274520), (100, 219616), (128, 171575), (160, 137260), (200, 109808), (320, 68630), (400, 54904), (640, 34315), (800, 27452), (1600, 13726), (3200, 6863)]