164504840

素因数分解:

$2^3\times 5^1\times {\mathrm{4112621}}^1$

素因数の和:4112632

約数の個数: 16

約数和(自身を含む): 370135980

約数和(自身を除く): 205631140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4112621, 8225242, 16450484, 20563105, 32900968, 41126210, 82252420, 164504840]

約数ペア:

[(1, 164504840), (2, 82252420), (4, 41126210), (5, 32900968), (8, 20563105), (10, 16450484), (20, 8225242), (40, 4112621)]