28986980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131759}}^1$

素因数の和:131779

約数の個数: 24

約数和(自身を含む): 66407040

約数和(自身を除く): 37420060

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 131759, 263518, 527036, 658795, 1317590, 1449349, 2635180, 2898698, 5797396, 7246745, 14493490, 28986980]

約数ペア:

[(1, 28986980), (2, 14493490), (4, 7246745), (5, 5797396), (10, 2898698), (11, 2635180), (20, 1449349), (22, 1317590), (44, 658795), (55, 527036), (110, 263518), (220, 131759)]