20431595

素因数分解:

$5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{409}}^1$

素因数の和:614

約数の個数: 16

約数和(自身を含む): 25072320

約数和(自身を除く): 4640725

約数列:

[1, 5, 97, 103, 409, 485, 515, 2045, 9991, 39673, 42127, 49955, 198365, 210635, 4086319, 20431595]

約数ペア:

[(1, 20431595), (5, 4086319), (97, 210635), (103, 198365), (409, 49955), (485, 42127), (515, 39673), (2045, 9991)]