2019901670

素因数分解:

$2^1\times 5^1\times {\mathrm{1289}}^1\times {\mathrm{156703}}^1$

素因数の和:157999

約数の個数: 16

約数和(自身を含む): 3638666880

約数和(自身を除く): 1618765210

約数列:

[1, 2, 5, 10, 1289, 2578, 6445, 12890, 156703, 313406, 783515, 1567030, 201990167, 403980334, 1009950835, 2019901670]

約数ペア:

[(1, 2019901670), (2, 1009950835), (5, 403980334), (10, 201990167), (1289, 1567030), (2578, 783515), (6445, 313406), (12890, 156703)]