20530480

素因数分解:

$2^4\times 5^1\times {\mathrm{353}}^1\times {\mathrm{727}}^1$

素因数の和:1093

約数の個数: 40

約数和(自身を含む): 47934432

約数和(自身を除く): 27403952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 353, 706, 727, 1412, 1454, 1765, 2824, 2908, 3530, 3635, 5648, 5816, 7060, 7270, 11632, 14120, 14540, 28240, 29080, 58160, 256631, 513262, 1026524, 1283155, 2053048, 2566310, 4106096, 5132620, 10265240, 20530480]

約数ペア:

[(1, 20530480), (2, 10265240), (4, 5132620), (5, 4106096), (8, 2566310), (10, 2053048), (16, 1283155), (20, 1026524), (40, 513262), (80, 256631), (353, 58160), (706, 29080), (727, 28240), (1412, 14540), (1454, 14120), (1765, 11632), (2824, 7270), (2908, 7060), (3530, 5816), (3635, 5648)]