28358320

素因数分解:

$2^4\times 5^1\times {\mathrm{354479}}^1$

素因数の和:354492

約数の個数: 20

約数和(自身を含む): 65933280

約数和(自身を除く): 37574960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354479, 708958, 1417916, 1772395, 2835832, 3544790, 5671664, 7089580, 14179160, 28358320]

約数ペア:

[(1, 28358320), (2, 14179160), (4, 7089580), (5, 5671664), (8, 3544790), (10, 2835832), (16, 1772395), (20, 1417916), (40, 708958), (80, 354479)]