86419640

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{21391}}^1$

素因数の和:21503

約数の個数: 32

約数和(自身を含む): 196378560

約数和(自身を除く): 109958920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 21391, 42782, 85564, 106955, 171128, 213910, 427820, 855640, 2160491, 4320982, 8641964, 10802455, 17283928, 21604910, 43209820, 86419640]

約数ペア:

[(1, 86419640), (2, 43209820), (4, 21604910), (5, 17283928), (8, 10802455), (10, 8641964), (20, 4320982), (40, 2160491), (101, 855640), (202, 427820), (404, 213910), (505, 171128), (808, 106955), (1010, 85564), (2020, 42782), (4040, 21391)]