28298380

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{128629}}^1$

素因数の和:128649

約数の個数: 24

約数和(自身を含む): 64829520

約数和(自身を除く): 36531140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 128629, 257258, 514516, 643145, 1286290, 1414919, 2572580, 2829838, 5659676, 7074595, 14149190, 28298380]

約数ペア:

[(1, 28298380), (2, 14149190), (4, 7074595), (5, 5659676), (10, 2829838), (11, 2572580), (20, 1414919), (22, 1286290), (44, 643145), (55, 514516), (110, 257258), (220, 128629)]