919093990

素因数分解:

$2^1\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{90019}}^1$

素因数の和:91047

約数の個数: 16

約数和(自身を含む): 1656007920

約数和(自身を除く): 736913930

約数列:

[1, 2, 5, 10, 1021, 2042, 5105, 10210, 90019, 180038, 450095, 900190, 91909399, 183818798, 459546995, 919093990]

約数ペア:

[(1, 919093990), (2, 459546995), (5, 183818798), (10, 91909399), (1021, 900190), (2042, 450095), (5105, 180038), (10210, 90019)]