84020545

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{20173}}^1$

素因数の和:20209

約数の個数: 24

約数和(自身を含む): 124191144

約数和(自身を除く): 40170599

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 20173, 100865, 141211, 342941, 706055, 988477, 1714705, 2400587, 4942385, 12002935, 16804109, 84020545]

約数ペア:

[(1, 84020545), (5, 16804109), (7, 12002935), (17, 4942385), (35, 2400587), (49, 1714705), (85, 988477), (119, 706055), (245, 342941), (595, 141211), (833, 100865), (4165, 20173)]