71287132

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{20047}}^1$

素因数の和:20185

約数の個数: 24

約数和(自身を含む): 143704064

約数和(自身を除く): 72416932

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 20047, 40094, 80188, 140329, 280658, 561316, 2545969, 5091938, 10183876, 17821783, 35643566, 71287132]

約数ペア:

[(1, 71287132), (2, 35643566), (4, 17821783), (7, 10183876), (14, 5091938), (28, 2545969), (127, 561316), (254, 280658), (508, 140329), (889, 80188), (1778, 40094), (3556, 20047)]