28196260

素因数分解:

$2^2\times 5^1\times {\mathrm{647}}^1\times {\mathrm{2179}}^1$

素因数の和:2835

約数の個数: 24

約数和(自身を含む): 59330880

約数和(自身を除く): 31134620

約数列:

[1, 2, 4, 5, 10, 20, 647, 1294, 2179, 2588, 3235, 4358, 6470, 8716, 10895, 12940, 21790, 43580, 1409813, 2819626, 5639252, 7049065, 14098130, 28196260]

約数ペア:

[(1, 28196260), (2, 14098130), (4, 7049065), (5, 5639252), (10, 2819626), (20, 1409813), (647, 43580), (1294, 21790), (2179, 12940), (2588, 10895), (3235, 8716), (4358, 6470)]