20218113220

素因数分解:

$2^2\times 5^1\times {\mathrm{491}}^1\times {\mathrm{2058871}}^1$

素因数の和:2059371

約数の個数: 24

約数和(自身を含む): 42544531008

約数和(自身を除く): 22326417788

約数列:

[1, 2, 4, 5, 10, 20, 491, 982, 1964, 2455, 4910, 9820, 2058871, 4117742, 8235484, 10294355, 20588710, 41177420, 1010905661, 2021811322, 4043622644, 5054528305, 10109056610, 20218113220]

約数ペア:

[(1, 20218113220), (2, 10109056610), (4, 5054528305), (5, 4043622644), (10, 2021811322), (20, 1010905661), (491, 41177420), (982, 20588710), (1964, 10294355), (2455, 8235484), (4910, 4117742), (9820, 2058871)]