172715990

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{41221}}^1$

素因数の和:41647

約数の個数: 16

約数和(自身を含む): 311638320

約数和(自身を除く): 138922330

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 41221, 82442, 206105, 412210, 17271599, 34543198, 86357995, 172715990]

約数ペア:

[(1, 172715990), (2, 86357995), (5, 34543198), (10, 17271599), (419, 412210), (838, 206105), (2095, 82442), (4190, 41221)]