82904840

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{20521}}^1$

素因数の和:20633

約数の個数: 32

約数和(自身を含む): 188391960

約数和(自身を除く): 105487120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 20521, 41042, 82084, 102605, 164168, 205210, 410420, 820840, 2072621, 4145242, 8290484, 10363105, 16580968, 20726210, 41452420, 82904840]

約数ペア:

[(1, 82904840), (2, 41452420), (4, 20726210), (5, 16580968), (8, 10363105), (10, 8290484), (20, 4145242), (40, 2072621), (101, 820840), (202, 410420), (404, 205210), (505, 164168), (808, 102605), (1010, 82084), (2020, 41042), (4040, 20521)]