128589560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{292249}}^1$

素因数の和:292271

約数の個数: 32

約数和(自身を含む): 315630000

約数和(自身を除く): 187040440

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 292249, 584498, 1168996, 1461245, 2337992, 2922490, 3214739, 5844980, 6429478, 11689960, 12858956, 16073695, 25717912, 32147390, 64294780, 128589560]

約数ペア:

[(1, 128589560), (2, 64294780), (4, 32147390), (5, 25717912), (8, 16073695), (10, 12858956), (11, 11689960), (20, 6429478), (22, 5844980), (40, 3214739), (44, 2922490), (55, 2337992), (88, 1461245), (110, 1168996), (220, 584498), (440, 292249)]