1276880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1451}}^1$

素因数の和:1475

約数の個数: 40

約数和(自身を含む): 3240864

約数和(自身を除く): 1963984

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 1451, 2902, 5804, 7255, 11608, 14510, 15961, 23216, 29020, 31922, 58040, 63844, 79805, 116080, 127688, 159610, 255376, 319220, 638440, 1276880]

約数ペア:

[(1, 1276880), (2, 638440), (4, 319220), (5, 255376), (8, 159610), (10, 127688), (11, 116080), (16, 79805), (20, 63844), (22, 58040), (40, 31922), (44, 29020), (55, 23216), (80, 15961), (88, 14510), (110, 11608), (176, 7255), (220, 5804), (440, 2902), (880, 1451)]