20200990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{106321}}^1$

素因数の和:106347

約数の個数: 16

約数和(自身を含む): 38275920

約数和(自身を除く): 18074930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 106321, 212642, 531605, 1063210, 2020099, 4040198, 10100495, 20200990]

約数ペア:

[(1, 20200990), (2, 10100495), (5, 4040198), (10, 2020099), (19, 1063210), (38, 531605), (95, 212642), (190, 106321)]