20178038768

素因数分解:

$2^4\times {\mathrm{13859}}^1\times {\mathrm{90997}}^1$

素因数の和:104864

約数の個数: 20

約数和(自身を含む): 39098200680

約数和(自身を除く): 18920161912

約数列:

[1, 2, 4, 8, 16, 13859, 27718, 55436, 90997, 110872, 181994, 221744, 363988, 727976, 1455952, 1261127423, 2522254846, 5044509692, 10089019384, 20178038768]

約数ペア:

[(1, 20178038768), (2, 10089019384), (4, 5044509692), (8, 2522254846), (16, 1261127423), (13859, 1455952), (27718, 727976), (55436, 363988), (90997, 221744), (110872, 181994)]