28338860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128813}}^1$

素因数の和:128833

約数の個数: 24

約数和(自身を含む): 64922256

約数和(自身を除く): 36583396

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128813, 257626, 515252, 644065, 1288130, 1416943, 2576260, 2833886, 5667772, 7084715, 14169430, 28338860]

約数ペア:

[(1, 28338860), (2, 14169430), (4, 7084715), (5, 5667772), (10, 2833886), (11, 2576260), (20, 1416943), (22, 1288130), (44, 644065), (55, 515252), (110, 257626), (220, 128813)]