16828520

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{937}}^1$

素因数の和:1397

約数の個数: 32

約数和(自身を含む): 37989000

約数和(自身を除く): 21160480

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 937, 1796, 1874, 2245, 3592, 3748, 4490, 4685, 7496, 8980, 9370, 17960, 18740, 37480, 420713, 841426, 1682852, 2103565, 3365704, 4207130, 8414260, 16828520]

約数ペア:

[(1, 16828520), (2, 8414260), (4, 4207130), (5, 3365704), (8, 2103565), (10, 1682852), (20, 841426), (40, 420713), (449, 37480), (898, 18740), (937, 17960), (1796, 9370), (1874, 8980), (2245, 7496), (3592, 4685), (3748, 4490)]