816654320

素因数分解:

$2^4\times 5^1\times {\mathrm{10208179}}^1$

素因数の和:10208192

約数の個数: 20

約数和(自身を含む): 1898721480

約数和(自身を除く): 1082067160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10208179, 20416358, 40832716, 51040895, 81665432, 102081790, 163330864, 204163580, 408327160, 816654320]

約数ペア:

[(1, 816654320), (2, 408327160), (4, 204163580), (5, 163330864), (8, 102081790), (10, 81665432), (16, 51040895), (20, 40832716), (40, 20416358), (80, 10208179)]