31360760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{18233}}^1$

素因数の和:18287

約数の個数: 32

約数和(自身を含む): 72206640

約数和(自身を除く): 40845880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 18233, 36466, 72932, 91165, 145864, 182330, 364660, 729320, 784019, 1568038, 3136076, 3920095, 6272152, 7840190, 15680380, 31360760]

約数ペア:

[(1, 31360760), (2, 15680380), (4, 7840190), (5, 6272152), (8, 3920095), (10, 3136076), (20, 1568038), (40, 784019), (43, 729320), (86, 364660), (172, 182330), (215, 145864), (344, 91165), (430, 72932), (860, 36466), (1720, 18233)]