19720304

素因数分解:

$2^4\times {\mathrm{881}}^1\times {\mathrm{1399}}^1$

素因数の和:2288

約数の個数: 20

約数和(自身を含む): 38278800

約数和(自身を除く): 18558496

約数列:

[1, 2, 4, 8, 16, 881, 1399, 1762, 2798, 3524, 5596, 7048, 11192, 14096, 22384, 1232519, 2465038, 4930076, 9860152, 19720304]

約数ペア:

[(1, 19720304), (2, 9860152), (4, 4930076), (8, 2465038), (16, 1232519), (881, 22384), (1399, 14096), (1762, 11192), (2798, 7048), (3524, 5596)]