198605

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{157}}^1$

素因数の和:196

約数の個数: 16

約数和(自身を含む): 273024

約数和(自身を除く): 74419

約数列:

[1, 5, 11, 23, 55, 115, 157, 253, 785, 1265, 1727, 3611, 8635, 18055, 39721, 198605]

約数ペア:

[(1, 198605), (5, 39721), (11, 18055), (23, 8635), (55, 3611), (115, 1727), (157, 1265), (253, 785)]