856720

素因数分解:

$2^4\times 5^1\times {\mathrm{10709}}^1$

素因数の和:10722

約数の個数: 20

約数和(自身を含む): 1992060

約数和(自身を除く): 1135340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10709, 21418, 42836, 53545, 85672, 107090, 171344, 214180, 428360, 856720]

約数ペア:

[(1, 856720), (2, 428360), (4, 214180), (5, 171344), (8, 107090), (10, 85672), (16, 53545), (20, 42836), (40, 21418), (80, 10709)]