408933215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{209173}}^1$

素因数の和:209218

約数の個数: 16

約数和(自身を含む): 542179008

約数和(自身を除く): 133245793

約数列:

[1, 5, 17, 23, 85, 115, 391, 1955, 209173, 1045865, 3555941, 4810979, 17779705, 24054895, 81786643, 408933215]

約数ペア:

[(1, 408933215), (5, 81786643), (17, 24054895), (23, 17779705), (85, 4810979), (115, 3555941), (391, 1045865), (1955, 209173)]