2017257520

素因数分解:

$2^4\times 5^1\times {\mathrm{25215719}}^1$

素因数の和:25215732

約数の個数: 20

約数和(自身を含む): 4690123920

約数和(自身を除く): 2672866400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25215719, 50431438, 100862876, 126078595, 201725752, 252157190, 403451504, 504314380, 1008628760, 2017257520]

約数ペア:

[(1, 2017257520), (2, 1008628760), (4, 504314380), (5, 403451504), (8, 252157190), (10, 201725752), (16, 126078595), (20, 100862876), (40, 50431438), (80, 25215719)]