278719974

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{397037}}^1$

素因数の和:397061

約数の個数: 32

約数和(自身を含む): 667023840

約数和(自身を除く): 388303866

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 27, 39, 54, 78, 117, 234, 351, 702, 397037, 794074, 1191111, 2382222, 3573333, 5161481, 7146666, 10322962, 10719999, 15484443, 21439998, 30968886, 46453329, 92906658, 139359987, 278719974]

約数ペア:

[(1, 278719974), (2, 139359987), (3, 92906658), (6, 46453329), (9, 30968886), (13, 21439998), (18, 15484443), (26, 10719999), (27, 10322962), (39, 7146666), (54, 5161481), (78, 3573333), (117, 2382222), (234, 1191111), (351, 794074), (702, 397037)]