28107860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127763}}^1$

素因数の和:127783

約数の個数: 24

約数和(自身を含む): 64393056

約数和(自身を除く): 36285196

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 127763, 255526, 511052, 638815, 1277630, 1405393, 2555260, 2810786, 5621572, 7026965, 14053930, 28107860]

約数ペア:

[(1, 28107860), (2, 14053930), (4, 7026965), (5, 5621572), (10, 2810786), (11, 2555260), (20, 1405393), (22, 1277630), (44, 638815), (55, 511052), (110, 255526), (220, 127763)]