26880345

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:390

約数の個数: 48

約数和(自身を含む): 49608000

約数和(自身を除く): 22727655

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 149, 171, 211, 285, 447, 633, 745, 855, 1055, 1341, 1899, 2235, 2831, 3165, 4009, 6705, 8493, 9495, 12027, 14155, 20045, 25479, 31439, 36081, 42465, 60135, 94317, 127395, 157195, 180405, 282951, 471585, 597341, 1414755, 1792023, 2986705, 5376069, 8960115, 26880345]

約数ペア:

[(1, 26880345), (3, 8960115), (5, 5376069), (9, 2986705), (15, 1792023), (19, 1414755), (45, 597341), (57, 471585), (95, 282951), (149, 180405), (171, 157195), (211, 127395), (285, 94317), (447, 60135), (633, 42465), (745, 36081), (855, 31439), (1055, 25479), (1341, 20045), (1899, 14155), (2235, 12027), (2831, 9495), (3165, 8493), (4009, 6705)]