42660016

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{20047}}^1$

素因数の和:20081

約数の個数: 40

約数和(自身を含む): 99438080

約数和(自身を除く): 56778064

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 20047, 40094, 80188, 140329, 160376, 280658, 320752, 380893, 561316, 761786, 1122632, 1523572, 2245264, 2666251, 3047144, 5332502, 6094288, 10665004, 21330008, 42660016]

約数ペア:

[(1, 42660016), (2, 21330008), (4, 10665004), (7, 6094288), (8, 5332502), (14, 3047144), (16, 2666251), (19, 2245264), (28, 1523572), (38, 1122632), (56, 761786), (76, 561316), (112, 380893), (133, 320752), (152, 280658), (266, 160376), (304, 140329), (532, 80188), (1064, 40094), (2128, 20047)]