28411505

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{2129}}^1$

素因数の和:2308

約数の個数: 16

約数和(自身を含む): 36346320

約数和(自身を除く): 7934815

約数列:

[1, 5, 17, 85, 157, 785, 2129, 2669, 10645, 13345, 36193, 180965, 334253, 1671265, 5682301, 28411505]

約数ペア:

[(1, 28411505), (5, 5682301), (17, 1671265), (85, 334253), (157, 180965), (785, 36193), (2129, 13345), (2669, 10645)]