25545784

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{43}}^2\times {\mathrm{157}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 53836920

約数和(自身を除く): 28291136

約数列:

[1, 2, 4, 8, 11, 22, 43, 44, 86, 88, 157, 172, 314, 344, 473, 628, 946, 1256, 1727, 1849, 1892, 3454, 3698, 3784, 6751, 6908, 7396, 13502, 13816, 14792, 20339, 27004, 40678, 54008, 74261, 81356, 148522, 162712, 290293, 297044, 580586, 594088, 1161172, 2322344, 3193223, 6386446, 12772892, 25545784]

約数ペア:

[(1, 25545784), (2, 12772892), (4, 6386446), (8, 3193223), (11, 2322344), (22, 1161172), (43, 594088), (44, 580586), (86, 297044), (88, 290293), (157, 162712), (172, 148522), (314, 81356), (344, 74261), (473, 54008), (628, 40678), (946, 27004), (1256, 20339), (1727, 14792), (1849, 13816), (1892, 13502), (3454, 7396), (3698, 6908), (3784, 6751)]