20388280

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{46337}}^1$

素因数の和:46359

約数の個数: 32

約数和(自身を含む): 50045040

約数和(自身を除く): 29656760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 46337, 92674, 185348, 231685, 370696, 463370, 509707, 926740, 1019414, 1853480, 2038828, 2548535, 4077656, 5097070, 10194140, 20388280]

約数ペア:

[(1, 20388280), (2, 10194140), (4, 5097070), (5, 4077656), (8, 2548535), (10, 2038828), (11, 1853480), (20, 1019414), (22, 926740), (40, 509707), (44, 463370), (55, 370696), (88, 231685), (110, 185348), (220, 92674), (440, 46337)]