8001955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{401}}^1$

素因数の和:726

約数の個数: 16

約数和(自身を含む): 10400544

約数和(自身を除く): 2398589

約数列:

[1, 5, 13, 65, 307, 401, 1535, 2005, 3991, 5213, 19955, 26065, 123107, 615535, 1600391, 8001955]

約数ペア:

[(1, 8001955), (5, 1600391), (13, 615535), (65, 123107), (307, 26065), (401, 19955), (1535, 5213), (2005, 3991)]