20380208

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{55381}}^1$

素因数の和:55412

約数の個数: 20

約数和(自身を含む): 41204208

約数和(自身を除く): 20824000

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 55381, 110762, 221524, 443048, 886096, 1273763, 2547526, 5095052, 10190104, 20380208]

約数ペア:

[(1, 20380208), (2, 10190104), (4, 5095052), (8, 2547526), (16, 1273763), (23, 886096), (46, 443048), (92, 221524), (184, 110762), (368, 55381)]