28305860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128663}}^1$

素因数の和:128683

約数の個数: 24

約数和(自身を含む): 64846656

約数和(自身を除く): 36540796

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128663, 257326, 514652, 643315, 1286630, 1415293, 2573260, 2830586, 5661172, 7076465, 14152930, 28305860]

約数ペア:

[(1, 28305860), (2, 14152930), (4, 7076465), (5, 5661172), (10, 2830586), (11, 2573260), (20, 1415293), (22, 1286630), (44, 643315), (55, 514652), (110, 257326), (220, 128663)]