20687660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{147769}}^1$

素因数の和:147785

約数の個数: 24

約数和(自身を含む): 49650720

約数和(自身を除く): 28963060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 147769, 295538, 591076, 738845, 1034383, 1477690, 2068766, 2955380, 4137532, 5171915, 10343830, 20687660]

約数ペア:

[(1, 20687660), (2, 10343830), (4, 5171915), (5, 4137532), (7, 2955380), (10, 2068766), (14, 1477690), (20, 1034383), (28, 738845), (35, 591076), (70, 295538), (140, 147769)]