10981990

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{2621}}^1$

素因数の和:3047

約数の個数: 16

約数和(自身を含む): 19822320

約数和(自身を除く): 8840330

約数列:

[1, 2, 5, 10, 419, 838, 2095, 2621, 4190, 5242, 13105, 26210, 1098199, 2196398, 5490995, 10981990]

約数ペア:

[(1, 10981990), (2, 5490995), (5, 2196398), (10, 1098199), (419, 26210), (838, 13105), (2095, 5242), (2621, 4190)]