164038480

素因数分解:

$2^4\times 5^1\times {\mathrm{2050481}}^1$

素因数の和:2050494

約数の個数: 20

約数和(自身を含む): 381389652

約数和(自身を除く): 217351172

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2050481, 4100962, 8201924, 10252405, 16403848, 20504810, 32807696, 41009620, 82019240, 164038480]

約数ペア:

[(1, 164038480), (2, 82019240), (4, 41009620), (5, 32807696), (8, 20504810), (10, 16403848), (16, 10252405), (20, 8201924), (40, 4100962), (80, 2050481)]