20486320

素因数分解:

$2^4\times 5^1\times {\mathrm{256079}}^1$

素因数の和:256092

約数の個数: 20

約数和(自身を含む): 47630880

約数和(自身を除く): 27144560

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 256079, 512158, 1024316, 1280395, 2048632, 2560790, 4097264, 5121580, 10243160, 20486320]

約数ペア:

[(1, 20486320), (2, 10243160), (4, 5121580), (5, 4097264), (8, 2560790), (10, 2048632), (16, 1280395), (20, 1024316), (40, 512158), (80, 256079)]