201998765275

素因数分解:

$5^2\times {\mathrm{101}}^1\times {\mathrm{79999511}}^1$

素因数の和:79999622

約数の個数: 12

約数和(自身を含む): 252958456944

約数和(自身を除く): 50959691669

約数列:

[1, 5, 25, 101, 505, 2525, 79999511, 399997555, 1999987775, 8079950611, 40399753055, 201998765275]

約数ペア:

[(1, 201998765275), (5, 40399753055), (25, 8079950611), (101, 1999987775), (505, 399997555), (2525, 79999511)]