16839280

素因数分解:

$2^4\times 5^1\times {\mathrm{210491}}^1$

素因数の和:210504

約数の個数: 20

約数和(自身を含む): 39151512

約数和(自身を除く): 22312232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 210491, 420982, 841964, 1052455, 1683928, 2104910, 3367856, 4209820, 8419640, 16839280]

約数ペア:

[(1, 16839280), (2, 8419640), (4, 4209820), (5, 3367856), (8, 2104910), (10, 1683928), (16, 1052455), (20, 841964), (40, 420982), (80, 210491)]