80343880

素因数分解:

$2^3\times 5^1\times {\mathrm{709}}^1\times {\mathrm{2833}}^1$

素因数の和:3553

約数の個数: 32

約数和(自身を含む): 181092600

約数和(自身を除く): 100748720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 709, 1418, 2833, 2836, 3545, 5666, 5672, 7090, 11332, 14165, 14180, 22664, 28330, 28360, 56660, 113320, 2008597, 4017194, 8034388, 10042985, 16068776, 20085970, 40171940, 80343880]

約数ペア:

[(1, 80343880), (2, 40171940), (4, 20085970), (5, 16068776), (8, 10042985), (10, 8034388), (20, 4017194), (40, 2008597), (709, 113320), (1418, 56660), (2833, 28360), (2836, 28330), (3545, 22664), (5666, 14180), (5672, 14165), (7090, 11332)]