20379904

素因数分解:

$2^8\times {\mathrm{79609}}^1$

素因数の和:79625

約数の個数: 18

約数和(自身を含む): 40680710

約数和(自身を除く): 20300806

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 256, 79609, 159218, 318436, 636872, 1273744, 2547488, 5094976, 10189952, 20379904]

約数ペア:

[(1, 20379904), (2, 10189952), (4, 5094976), (8, 2547488), (16, 1273744), (32, 636872), (64, 318436), (128, 159218), (256, 79609)]