201997445

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{72271}}^1$

素因数の和:72332

約数の個数: 16

約数和(自身を含む): 267117312

約数和(自身を除く): 65119867

約数列:

[1, 5, 13, 43, 65, 215, 559, 2795, 72271, 361355, 939523, 3107653, 4697615, 15538265, 40399489, 201997445]

約数ペア:

[(1, 201997445), (5, 40399489), (13, 15538265), (43, 4697615), (65, 3107653), (215, 939523), (559, 361355), (2795, 72271)]