87871640

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{129223}}^1$

素因数の和:129251

約数の個数: 32

約数和(自身を含む): 209342880

約数和(自身を除く): 121471240

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 129223, 258446, 516892, 646115, 1033784, 1292230, 2196791, 2584460, 4393582, 5168920, 8787164, 10983955, 17574328, 21967910, 43935820, 87871640]

約数ペア:

[(1, 87871640), (2, 43935820), (4, 21967910), (5, 17574328), (8, 10983955), (10, 8787164), (17, 5168920), (20, 4393582), (34, 2584460), (40, 2196791), (68, 1292230), (85, 1033784), (136, 646115), (170, 516892), (340, 258446), (680, 129223)]