20171665460

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{9985973}}^1$

素因数の和:9986083

約数の個数: 24

約数和(自身を含む): 42779912616

約数和(自身を除く): 22608247156

約数列:

[1, 2, 4, 5, 10, 20, 101, 202, 404, 505, 1010, 2020, 9985973, 19971946, 39943892, 49929865, 99859730, 199719460, 1008583273, 2017166546, 4034333092, 5042916365, 10085832730, 20171665460]

約数ペア:

[(1, 20171665460), (2, 10085832730), (4, 5042916365), (5, 4034333092), (10, 2017166546), (20, 1008583273), (101, 199719460), (202, 99859730), (404, 49929865), (505, 39943892), (1010, 19971946), (2020, 9985973)]