28203440

素因数分解:

$2^4\times 5^1\times {\mathrm{352543}}^1$

素因数の和:352556

約数の個数: 20

約数和(自身を含む): 65573184

約数和(自身を除く): 37369744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 352543, 705086, 1410172, 1762715, 2820344, 3525430, 5640688, 7050860, 14101720, 28203440]

約数ペア:

[(1, 28203440), (2, 14101720), (4, 7050860), (5, 5640688), (8, 3525430), (10, 2820344), (16, 1762715), (20, 1410172), (40, 705086), (80, 352543)]