123404000

素因数分解:

$2^5\times 5^3\times {\mathrm{30851}}^1$

素因数の和:30876

約数の個数: 48

約数和(自身を含む): 303213456

約数和(自身を除く): 179809456

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 125, 160, 200, 250, 400, 500, 800, 1000, 2000, 4000, 30851, 61702, 123404, 154255, 246808, 308510, 493616, 617020, 771275, 987232, 1234040, 1542550, 2468080, 3085100, 3856375, 4936160, 6170200, 7712750, 12340400, 15425500, 24680800, 30851000, 61702000, 123404000]

約数ペア:

[(1, 123404000), (2, 61702000), (4, 30851000), (5, 24680800), (8, 15425500), (10, 12340400), (16, 7712750), (20, 6170200), (25, 4936160), (32, 3856375), (40, 3085100), (50, 2468080), (80, 1542550), (100, 1234040), (125, 987232), (160, 771275), (200, 617020), (250, 493616), (400, 308510), (500, 246808), (800, 154255), (1000, 123404), (2000, 61702), (4000, 30851)]