1809680

素因数分解:

$2^4\times 5^1\times {\mathrm{22621}}^1$

素因数の和:22634

約数の個数: 20

約数和(自身を含む): 4207692

約数和(自身を除く): 2398012

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 22621, 45242, 90484, 113105, 180968, 226210, 361936, 452420, 904840, 1809680]

約数ペア:

[(1, 1809680), (2, 904840), (4, 452420), (5, 361936), (8, 226210), (10, 180968), (16, 113105), (20, 90484), (40, 45242), (80, 22621)]