15785840

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{4027}}^1$

素因数の和:4054

約数の個数: 60

約数和(自身を含む): 42704856

約数和(自身を除く): 26919016

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 4027, 8054, 16108, 20135, 28189, 32216, 40270, 56378, 64432, 80540, 112756, 140945, 161080, 197323, 225512, 281890, 322160, 394646, 451024, 563780, 789292, 986615, 1127560, 1578584, 1973230, 2255120, 3157168, 3946460, 7892920, 15785840]

約数ペア:

[(1, 15785840), (2, 7892920), (4, 3946460), (5, 3157168), (7, 2255120), (8, 1973230), (10, 1578584), (14, 1127560), (16, 986615), (20, 789292), (28, 563780), (35, 451024), (40, 394646), (49, 322160), (56, 281890), (70, 225512), (80, 197323), (98, 161080), (112, 140945), (140, 112756), (196, 80540), (245, 64432), (280, 56378), (392, 40270), (490, 32216), (560, 28189), (784, 20135), (980, 16108), (1960, 8054), (3920, 4027)]