78984016

素因数分解:

$2^4\times {\mathrm{109}}^1\times {\mathrm{45289}}^1$

素因数の和:45406

約数の個数: 20

約数和(自身を含む): 154438900

約数和(自身を除く): 75454884

約数列:

[1, 2, 4, 8, 16, 109, 218, 436, 872, 1744, 45289, 90578, 181156, 362312, 724624, 4936501, 9873002, 19746004, 39492008, 78984016]

約数ペア:

[(1, 78984016), (2, 39492008), (4, 19746004), (8, 9873002), (16, 4936501), (109, 724624), (218, 362312), (436, 181156), (872, 90578), (1744, 45289)]