28590980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{129959}}^1$

素因数の和:129979

約数の個数: 24

約数和(自身を含む): 65499840

約数和(自身を除く): 36908860

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 129959, 259918, 519836, 649795, 1299590, 1429549, 2599180, 2859098, 5718196, 7147745, 14295490, 28590980]

約数ペア:

[(1, 28590980), (2, 14295490), (4, 7147745), (5, 5718196), (10, 2859098), (11, 2599180), (20, 1429549), (22, 1299590), (44, 649795), (55, 519836), (110, 259918), (220, 129959)]