81995629424

素因数分解:

$2^4\times {\mathrm{31}}^1\times {\mathrm{20641}}^1\times {\mathrm{8009}}^1$

素因数の和:28689

約数の個数: 40

約数和(自身を含む): 164019680640

約数和(自身を除く): 82024051216

約数列:

[1, 2, 4, 8, 16, 31, 62, 124, 248, 496, 8009, 16018, 20641, 32036, 41282, 64072, 82564, 128144, 165128, 248279, 330256, 496558, 639871, 993116, 1279742, 1986232, 2559484, 3972464, 5118968, 10237936, 165313769, 330627538, 661255076, 1322510152, 2645020304, 5124726839, 10249453678, 20498907356, 40997814712, 81995629424]

約数ペア:

[(1, 81995629424), (2, 40997814712), (4, 20498907356), (8, 10249453678), (16, 5124726839), (31, 2645020304), (62, 1322510152), (124, 661255076), (248, 330627538), (496, 165313769), (8009, 10237936), (16018, 5118968), (20641, 3972464), (32036, 2559484), (41282, 1986232), (64072, 1279742), (82564, 993116), (128144, 639871), (165128, 496558), (248279, 330256)]