87047660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{621769}}^1$

素因数の和:621785

約数の個数: 24

約数和(自身を含む): 208914720

約数和(自身を除く): 121867060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 621769, 1243538, 2487076, 3108845, 4352383, 6217690, 8704766, 12435380, 17409532, 21761915, 43523830, 87047660]

約数ペア:

[(1, 87047660), (2, 43523830), (4, 21761915), (5, 17409532), (7, 12435380), (10, 8704766), (14, 6217690), (20, 4352383), (28, 3108845), (35, 2487076), (70, 1243538), (140, 621769)]