16780985

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{599}}^1$

素因数の和:1048

約数の個数: 16

約数和(自身を含む): 21772800

約数和(自身を除く): 4991815

約数列:

[1, 5, 13, 65, 431, 599, 2155, 2995, 5603, 7787, 28015, 38935, 258169, 1290845, 3356197, 16780985]

約数ペア:

[(1, 16780985), (5, 3356197), (13, 1290845), (65, 258169), (431, 38935), (599, 28015), (2155, 7787), (2995, 5603)]