16457680

素因数分解:

$2^4\times 5^1\times {\mathrm{205721}}^1$

素因数の和:205734

約数の個数: 20

約数和(自身を含む): 38264292

約数和(自身を除く): 21806612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 205721, 411442, 822884, 1028605, 1645768, 2057210, 3291536, 4114420, 8228840, 16457680]

約数ペア:

[(1, 16457680), (2, 8228840), (4, 4114420), (5, 3291536), (8, 2057210), (10, 1645768), (16, 1028605), (20, 822884), (40, 411442), (80, 205721)]