209040020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{31769}}^1$

素因数の和:31832

約数の個数: 48

約数和(自身を含む): 512386560

約数和(自身を除く): 303346540

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 31769, 63538, 127076, 158845, 222383, 317690, 444766, 635380, 889532, 1111915, 1493143, 2223830, 2986286, 4447660, 5972572, 7465715, 10452001, 14931430, 20904002, 29862860, 41808004, 52260005, 104520010, 209040020]

約数ペア:

[(1, 209040020), (2, 104520010), (4, 52260005), (5, 41808004), (7, 29862860), (10, 20904002), (14, 14931430), (20, 10452001), (28, 7465715), (35, 5972572), (47, 4447660), (70, 2986286), (94, 2223830), (140, 1493143), (188, 1111915), (235, 889532), (329, 635380), (470, 444766), (658, 317690), (940, 222383), (1316, 158845), (1645, 127076), (3290, 63538), (6580, 31769)]