28738820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{130631}}^1$

素因数の和:130651

約数の個数: 24

約数和(自身を含む): 65838528

約数和(自身を除く): 37099708

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 130631, 261262, 522524, 653155, 1306310, 1436941, 2612620, 2873882, 5747764, 7184705, 14369410, 28738820]

約数ペア:

[(1, 28738820), (2, 14369410), (4, 7184705), (5, 5747764), (10, 2873882), (11, 2612620), (20, 1436941), (22, 1306310), (44, 653155), (55, 522524), (110, 261262), (220, 130631)]