86706680

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3137}}^1$

素因数の和:3839

約数の個数: 32

約数和(自身を含む): 195434640

約数和(自身を除く): 108727960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3137, 3455, 5528, 6274, 6910, 12548, 13820, 15685, 25096, 27640, 31370, 62740, 125480, 2167667, 4335334, 8670668, 10838335, 17341336, 21676670, 43353340, 86706680]

約数ペア:

[(1, 86706680), (2, 43353340), (4, 21676670), (5, 17341336), (8, 10838335), (10, 8670668), (20, 4335334), (40, 2167667), (691, 125480), (1382, 62740), (2764, 31370), (3137, 27640), (3455, 25096), (5528, 15685), (6274, 13820), (6910, 12548)]