256439400

素因数分解:

$2^3\times 3^1\times 5^2\times 7^1\times {\mathrm{61057}}^1$

素因数の和:61083

約数の個数: 96

約数和(自身を含む): 908543040

約数和(自身を除く): 652103640

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 25, 28, 30, 35, 40, 42, 50, 56, 60, 70, 75, 84, 100, 105, 120, 140, 150, 168, 175, 200, 210, 280, 300, 350, 420, 525, 600, 700, 840, 1050, 1400, 2100, 4200, 61057, 122114, 183171, 244228, 305285, 366342, 427399, 488456, 610570, 732684, 854798, 915855, 1221140, 1282197, 1465368, 1526425, 1709596, 1831710, 2136995, 2442280, 2564394, 3052850, 3419192, 3663420, 4273990, 4579275, 5128788, 6105700, 6410985, 7326840, 8547980, 9158550, 10257576, 10684975, 12211400, 12821970, 17095960, 18317100, 21369950, 25643940, 32054925, 36634200, 42739900, 51287880, 64109850, 85479800, 128219700, 256439400]

約数ペア:

[(1, 256439400), (2, 128219700), (3, 85479800), (4, 64109850), (5, 51287880), (6, 42739900), (7, 36634200), (8, 32054925), (10, 25643940), (12, 21369950), (14, 18317100), (15, 17095960), (20, 12821970), (21, 12211400), (24, 10684975), (25, 10257576), (28, 9158550), (30, 8547980), (35, 7326840), (40, 6410985), (42, 6105700), (50, 5128788), (56, 4579275), (60, 4273990), (70, 3663420), (75, 3419192), (84, 3052850), (100, 2564394), (105, 2442280), (120, 2136995), (140, 1831710), (150, 1709596), (168, 1526425), (175, 1465368), (200, 1282197), (210, 1221140), (280, 915855), (300, 854798), (350, 732684), (420, 610570), (525, 488456), (600, 427399), (700, 366342), (840, 305285), (1050, 244228), (1400, 183171), (2100, 122114), (4200, 61057)]