86995960

素因数分解:

$2^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{5591}}^1$

素因数の和:5991

約数の個数: 32

約数和(自身を含む): 196279200

約数和(自身を除く): 109283240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 389, 778, 1556, 1945, 3112, 3890, 5591, 7780, 11182, 15560, 22364, 27955, 44728, 55910, 111820, 223640, 2174899, 4349798, 8699596, 10874495, 17399192, 21748990, 43497980, 86995960]

約数ペア:

[(1, 86995960), (2, 43497980), (4, 21748990), (5, 17399192), (8, 10874495), (10, 8699596), (20, 4349798), (40, 2174899), (389, 223640), (778, 111820), (1556, 55910), (1945, 44728), (3112, 27955), (3890, 22364), (5591, 15560), (7780, 11182)]