20005946140

素因数分解:

$2^2\times 5^1\times {\mathrm{401}}^1\times {\mathrm{2494507}}^1$

素因数の和:2494917

約数の個数: 24

約数和(自身を含む): 42117273072

約数和(自身を除く): 22111326932

約数列:

[1, 2, 4, 5, 10, 20, 401, 802, 1604, 2005, 4010, 8020, 2494507, 4989014, 9978028, 12472535, 24945070, 49890140, 1000297307, 2000594614, 4001189228, 5001486535, 10002973070, 20005946140]

約数ペア:

[(1, 20005946140), (2, 10002973070), (4, 5001486535), (5, 4001189228), (10, 2000594614), (20, 1000297307), (401, 49890140), (802, 24945070), (1604, 12472535), (2005, 9978028), (4010, 4989014), (8020, 2494507)]